Product Updates

We have now released supported, documented versions of two libraries bridging the worlds of Python and AIMMS.These will allow you to benefit from (a) the ubiquity of the Python language and its vast library collection and (b) from the proven AIMMS functionality for supporting industrial optimization models.aimmspy This library supports ‘Python in the lead’ scenarios. A Python application interacts directly with an in process AIMMS model for manipulation of the AIMMS data and running optimizations. Primary use case for this is probably running AIMMS models ‘headless', for example as part of a larger application, in automated pipelines or for large-scale batch optimizations.   Key features:Interact with an AIMMS run-time from inside your Python script Read and write AIMMS identifier values Run procedures in AIMMS including solves Support for pandas and polars data frames Model declaration using AIMMS Developer Requires a valid AIMMS Developer licenseLearn more from our documentation or reach out to support@aimms.com.pyaimms This AIMMS library supports ‘AIMMS in the lead’ scenarios, calling Python from within an AIMMS model. Primary use case for this is probably outsourcing specialized calculations to Python. Think of Machine Learning, demand forecasting, data cleansing, data wrangling, etc. Key features:Execute Python scripts or single statements Read and write AIMMS identifier values in Python Support for pandas and polars data frames Specify the Python version and all dependencies required using Can run on AIMMS Cloud, using a pyproject.toml file to specify the Python version and all dependenciesLearn more from our documentation or reach out to support@aimms.com.

You can now download cloud session logs from the PRO Portal, so that you can analyze or troubleshoot your sessions. You can access the logs via the Sessions tab and the three vertical dots on the right-hand side. Please note the ‘download log’ option in the top-right-hand corner of the following screen shot.  

SC Navigator 25.11.1Date July 28, 2025 New Features A new attribute is added to the Custom Objective sheet: Percentage Based. It enables modeling tariffs, duties, and taxes. Furthermore, two new attributes were introduced on the Transport Cost and Transport Step Cost sheets for Percentage Based Custom Objectives: Value and Rate. The cost calculation for the Percentage Based Custom Objectives will be as follows: Volume * Value * Rate + Volume * Cost per UOM. The Charts tab on the Transport Navigator - Results page has been improved. Now the two top charts can also show the vehicles data (which was previously displayed in the two bottom charts). Furthermore, clicking on a location/period bar in either of the top charts will result in the bottom charts displaying the data for that location/period on a more detailed per hour basis. A new ‘Add Delay’ option in the Period Selector’s right-click menu lets users slow down playback by configuring a custom delay. Transport Navigator now supports mandatory driver breaks after extended continuous driving. ‘Maximum Drive Time Before Break’ sets the driving time limit, while ‘Break Time’ defines the required rest duration. Improvements On page Results - Transport, a widget action to control whether the number of trips is rounded up, was added to the relevant tables. A new result attribute ‘# of Customers Served’ is added to the Warehouse Results. This counts how many customers are served by the warehouse. It is visible in the Warehouse Throughput Usage table on the Warehouse Results page and in the Warehouse sheet of the Solution Report Excel. Data Validation now marks negative values in the Rate Card Drop Size column on the Transport Cost sheet as a FATAL error. The Bill of Routing table on the Production Results page now includes an Arrival Period column, when applicable. Upon startup, SC Navigator will perform a complete refresh of the available datasets in the “import” file system. This means that it will remove all existing import datasets from its memory, and rescan the contents of the import file system. Additionally, the widget action Refresh Import File Systems has been added to the table with datasets, on the “Load Data” dialog, as well as the “Manage Data” page. This allow you to do a refresh on demand. Unnecessary transport lane data is now removed during processing. In some cases, this can lead to significant improvements in memory consumption and performance when reading data. The performance of the data validation procedures has been improved. Bug Fixes If there was no data in the Location Period sheet, the Force Open and Close columns did not show, and the Show All Attributes widget action did not function for the Location Open/Close Data table on the Control Panel page. On page Results, Arc Customization is now also applied to the Reference Map. Data validation has been added in case a base case lane has a lead time shorter than the duration for that lane, or if it routes products to a destination that does not support those products. The solution provided by the Transport Navigator module would sometimes not visit all customers. In some cases, some data that should have been on the input Data pages, was not displayed there (although it was used in the model). This was data for which the Available flag was not set at that level. Now, the Data pages should show all input data that is in the model. In the Whiteboard and Manage Data Input Excel download there were faulty Transport Navigator attributes exported which caused reading errors. The “Select Reference Map” column was occasionally missing from the Results dialog. On some pages, the secondary page action button covered the primary page action button. The Production and Warehouse Group sheets were missing when the model was not authorized to use Transport Navigator, while the TN Vehicles sheet was included. Transport Navigator would fail if you ran the model twice, but after the first run you excluded a vehicle used in the solution. When comparing results data, the E2E table only displayed data for the active results. When creating Production Routing scenarios, binary attributes like Force Close were treated as non-binary in the interface, preventing them from being set to ‘off’. The lead time offset did not work correctly when the model contained period groups in between regular periods. In some cases, the Cost To Serve and End To End cost report were not correct when using Period Offset. The Production Routing Data table no longer omits the Period Offset after saving a dataset or loading a saved dataset (rather than Excel).

With the recent release of the new look for PRO Portal 3, you might have already noticed things feel a bit different. But we didn’t just update the visuals — we’ve also added some new pages and made a few things easier.Here’s what’s changed:🖥 New Sessions Page – finally everything in one placeYou can now see WebUI, Solver, and Task sessions all on a single page.No more switching around or guessing what’s running. It’s one overview, clear and to the point.📈 Stats Page – see how your apps and sessions are performingAlongside the new Sessions page, we’ve added a Stats page that gives you a visual overview of how sessions are performing over time.You’ll get insight into:Run Time – how long sessions take to complete Launch Time – how long it takes for a session to start (WebUI and Solver) Queue Time – time spent waiting to start (Solver and Task) Active Count – how many sessions were active at any given time.You can filter the stats by session type (WebUI, Solver, Task), time window, resolution (hour/day/week/month), and even by user (admin only).A few things to note:If you open the Stats page from the Apps page, it will show WebUI stats by default. If you open it from a specific session in the Sessions page, it automatically picks the right tab (e.g., Solver or Task). If there are no matching sessions for your filters, the graphs will be empty — just adjust the date range or filters.⚙️ Configuration Page – new location, more optionsThe Configuration section has moved, and you can now do more with it:Create and manage API keys Set up database tunnels Handle other technical settings more easily👤 User Management – faster, clearerWe’ve made it much easier to:Add or remove users from groups See which users are in which environments or groups at a glanceIf you manage multiple users or work with several environments, this should save you quite a bit of time.ℹ️ New About Page – everything you need, no diggingLooking for documentation? Need contact info? Want the link to download the AIMMS Launcher?It’s all now in one place: the About page. No need to ask or search — just click and go.We hope these changes make your daily work in PRO a bit smoother. If you have any questions, or if something’s not working the way you expect — let us know. We're always happy to take a look with you – just send an email to support@aimms.com

SC Navigator 25.10.1Date June 30, 2025 New Features A new feature “Lead Time Offsets” is added to SC Navigator. You can now define a “Period Offset” at key supply chain steps — Supply, Production, and Transport — to model lead time offsets. More information can be found in the section Lead Time Offsets. Improvements The algorithm to solve CoG using “Max Drive Time” and “Constrained CoG” (when the objective is to minimize the number of CoGs) has been improved. The algorithm should now get a faster solution or get a solution with a smaller gap. Bug Fixes The violation related to Type Count was not shown in the infeasibility analysis. A data validation error is raised if a base case lane routes a product from a source location that does not support it. The Windows notification that informs that all optimization runs have finished, always appeared after running a Scenarios Batch Run, even though ‘Allow notifications’ was not checked in the Control Panel. The Cost To Serve calculation has been corrected for certain cases when both a warehouse and a production were in use at the same location. For example, previously in certain situations, there were products for which the production volume reported by the Cost To Serve was negative if there was inventory for them at the same warehouse location. The community link on the SC Navigator page in the documentation now correctly refers to the AIMMS Community again.

SC Navigator 25.9.1Date June 6, 2025 New Features A new optimization module, Transport Navigator, is now available in SC Navigator. It enables users to generate multi-stop vehicle routing plans by optimizing fleet sizing and route design, based on real-world constraints. By adding transport-level decision support to SC Navigator’s end-to-end supply chain modeling, Transport Navigator helps bridge the gap between strategic network design and transportation planning. Read all the details in the Transport Navigator documentation. To get more information on modules, or to get access, please contact your account manager or email us at support@aimms.com. Improvements Data validation checks for Transport Ratios have been removed to prevent unnecessary alerts. For Supplier, Production, and Warehouse Ratios, validations are now issued as warnings instead of errors. Bug Fixes The KPI Overview considered only the variable cost from the custom objective costs. It now also includes the fixed, opening, and closing custom objective costs. Enabling the ‘Only Show Attributes With Data’ option on the Transportation Data page now displays all attributes with data in the Transportation Data table. On graph axes and in filter side panels, period names are now ordered chronologically instead of alphabetically. The Model Control panel now always displays all available options. The KPI report in comparison mode did not display all cost components. Now, all costs are shown in the report. The Infeasibility Analysis, including Base Case infeasibility, now functions as intended in applicable cases. When the Overview of Solutions dialog page was opened immediately after a run was finished, the View Results button was not always visible.

Under the ‘Python Bridge’ umbrella we released a beta version of aimmspy: https://pypi.org/project/aimmspy/In short:Interact with an AIMMS run-time from inside your Python script Read and write identifier values Run procedures in AIMMS including solves Support for data frames, pandas and polars Model declaration using AIMMS Developer Requires a valid AIMMS Developer licenseThis is our first release (1.0.1.post24) under the Python Bridge project. Soon we will add: pyaimms, call Python from within an AIMMS model pyaimms, adding AIMMS Cloud support aimmspy and for pyaimms: Full support and documentation (dropping ‘beta') …Please try it out and give us your feedback.Jan-Willem van Crevel, AIMMS

Dear Community,We are excited to announce the release of WebUI Library version 25.3! This update introduces several key enhancements aimed at improving modularity, flexibility, and user experience in your AIMMS WebUI applications. Below is a brief overview of the new features: 🚀 Support for Pages In LibrariesYou can now add WebUI pages to libraries that are part of your AIMMS project. These pages behave just like those in the Main Project and can be used across the application, including in Workflows, Tabbed Widgets, Navigation Menu, Side Panels, Dialogs, and other supported interaction contexts.This powerful feature promotes modular development and reuse of WebUI pages across multiple projects. It helps developers structure and manage WebUI content within separate libraries, enhancing maintainability, scalability, and collaboration, especially in large-scale applications.See the documentation for full details. 🛠️ Configurable Application MenuPreviously, the Navigation Menu Bar displayed only the pages from the Main Project. With Pages in Library support in, we’ve introduced a new option to provide full control over the menu content.In the "Menu Bar Settings" tab of Application Settings, you’ll now find a new option named “Menu Bar.” This allows you to define the menu structure using a String Parameter, similar to how Side Panels, Workflows, and Tabbed Widgets are configured. You can specify which pages to include, whether they are from the Main Project or from libraries. Additionally, you can control the state of each menu item, such as whether it should appear as active, inactive, or be conditionally displayed based on application logic.See the documentation for full details.  🗺️ Customizable Labels on Map ArcsThe Map widget type now supports custom labels on arcs through a new Label setting. You can display labels using a two-dimensional identifier, offering more flexibility and context in your visualizations.If no label is specified, it will fall back to the default behavior of displaying the Value. ⚠️ WebUI App Issue Warning MechanismWe’ve introduced a new feature that analyzes the WebUI setup (specifically the webui.json file) and reports issues related to widget, page, or other configuration aspects in your application. This makes it easier to capture, communicate, and resolve issues through clear, actionable feedback. If any issues are detected during WebUI startup or when landing on a page, a warning icon will appear in the application header.Clicking this icon opens a dialog that lists all the identified issues, helping you quickly understand and address them.We've used this new mechanism to report and guide users to resolve the Table sorting issue caused by how sorting information was previously stored.Read the documentation for more details.  We're confident these enhancements will improve your application and provide a better overall user experience. As always, your feedback and suggestions are highly valued. Feel free to explore the new features and share your thoughts with the community. Thanks,Team WebUI.

SC Navigator 25.8.1Date May 8, 2025 New Features SC Navigator now allows you to create rate cards, that are both zonal based (using ‘Rate Card From’ & ‘Rate Card To’) and distance based (using ‘Distance Lower’ and ‘Distance Upper’). This allows for more flexible rate card modeling. Improvements If an invalid or missing Distance Unit of Measurement (UOM) is provided, ‘mile’ will be used as the default. The data validation has been updated to show an error when reading from Excel and a warning when reading from a dataset if the unit is not “km” or “mile”. Data validation has been added to detect when a Base Case location has no inflow for a product. The Whiteboard page has been updated to use a new internal mechanism for showing the details of the currently selected Whiteboard node or arc. The Infeasibility Analysis page has been updated to use a new internal mechanism for showing the details of the infeasibilities. Previously you could determine which infeasibility details to show by selecting them in the top table of the page. In the new situation, this can be done in the two central widgets of the page by activating the relevant tabs on them. Bug Fixes When starting to solve a Center of Gravity model in the background, now a progress message is displayed, telling that the app is preparing for running it in the background. When solving a Constrained Center of Gravity model, the capacities for fixed CoG locations were not calculated correctly when not all periods were included. Timestamps in the SENSAI chat now accurately reflect your local time zone. In some cases, the model was incorrectly identified as infeasible when the dataset contained data for attribute Base Case Minimum Capacity (sheet Transportation Type Product). The Play function in the Period Selector could occasionally skip periods. Previously, downloaded solutions and exported results incorrectly included both warehouse and production elements in both the Warehouse Definition and Production Definition tables. Now, each resource element is correctly placed in its respective table. Spaces at the end of Custom Objective names are now removed from these names when generating the Excel template, to avoid related issues. Previously, when two users were simultaneously using SC Navigator and one of them saved a result data visible for all users, then that result data would not show up for the other user before restarting the application session. This has been addressed, and the list of result datasets synchronizes correctly with the shared datasets when entering the Result Data dialog.

SC Navigator 25.7.1Date April 7, 2025New Features We have introduced SENSAI to SC Navigator. SENSAI is an AI assistant designed to help users by answering SC Navigator related questions, including guidance through SC Navigator functionality and process support to enhance user experience. You can read more about How to Get the Most Out of SENSAI in our documentation. Please note that this version of SENSAI is a Beta release. Any feedback is much appreciated and welcome via support@aimms.com. Bug Fixes In SC Navigator 25.4.1, we stopped placing input data files in the Export folder. This feature has now been restored, and the files will be placed there again. On page Results - End To End, the data in the tables and in the filters is now restricted to those products that matches the selected level elements. Previously, if a certain production facility was shown, it showed the data for all products for those customer locations that have at least one product connected to that production facility. Now, it is limited to the products that are connected to that production facility. In previous versions, the application could generate a message like “ReadFromFile: Error: Reading parquet file production-routing.parquet failed: The file only has 0 row groups, requested metadata for row group: -1 in Parquet table file ‘production-routing.parquet’” when the application was trying to read an empty file. This has been fixed and the application will now read such files without any problem.

We want to discover whether there is demand for adding PowerBI Embedded to Optimization Tooling. And if so, in what form. So we are looking for your views and we are looking for potential launching customers or partners.ContextPowerBI Embedded is an Azure service for providing PowerBI dashboard inside a web application. It has a subset of the features of PowerBI Desktop. We recently released PowerBI Embedded as optional module for our network design and planning product SC Navigator. Why would you care?It would allow you to provide PowerBI dashboards with all its visualization power and flexibility, as part of an AIMMS application.  Optionally you might allow your end users to customize these dashboards (of course they would have to have the necessary skills).How would it work?We would provide: A widget which embeds the PowerBI dashboard inside WebUI Azure PowerBI Embedded service to run inside that iframe widget. Alternatively you can provide that yourself. PowerBI license. Again, you can also provide that yourself.  A mechanism to synchronize data between PowerBI embedded and AIMMS (using Databricks service on Azure). Instructions how to get started. You would have to: Configure with DEX the functionality to export data from the AIMMS model to the Databricks service. We will provide instructions for that. Connect the PowerBI Embedded service to the right data inside that Databricks service. We will provide instructions for that. Build one or more dashboard/reports in PowerBI Embedded.  We would charge you for: the OT PowerBI Embedded module (subscription) the Azure services we buy for you (cost +) optionally: support in setting this up Interested?Would you like to learn more about this potential feature or tell us about your needs or be a launching customer? Please contact me, Jan-Willem van Crevel, on j.w.van.crevel@aimms.com.  

Introducing to you our new software development project ‘Python Bridge’.Goal: Combining the best of AIMMS Optimization Tooling and the Python eco-system.Python’s coding features, tools and popularity Python’s vast library ecosystem AIMMS’ features for math program formulation, development and execution AIMMS’ WebUI for rapidly building interactive scenario planning applications AIMMS Cloud for easy, secure, scalable deployment OR local deploymentSupported scenarios:Run a Python app, outsource tasks to AIMMS (math programming, solving, cloud, end-user interface, ...) Run an AIMMS app, outsource tasks to Python (leverage Python's coding power and library ecosystem)Approach:The goal is clear. We are learning how best to combine these two worlds. There is still a lot to discover. Therefore we are releasing libraries and features, building prototypes and meeting monthly with a Customer Sounding Board to collect inputs and feedback. Current status:We released aimmscloud.py for interacting with the REST service end points on AIMMS Cloud.  Outsourcing tasks to Python from within an AIMMS apps works, including deployment of a separate container in our cloud running Python. In fact, we just released a new module for SC Navigator, Transport Optimization, that uses this feature to run a Python program to interact with the Hexaly solver. Read this article or contact support@aimms.com if you want to know more. Also looking at calling into python from within AIMMS: in-process python execution. We have several prototypes of a Python library to run a model declared in AIMMS, including automated parameter declaration and data syncing. We are engaging with our Customer Sounding Board members to learn about the desirability of specific features and where to move next. We aim to release a first library to outsource optimization from a Python app to an AIMMS instance in the next few months.  A first pre-pre-pre-pre release is expected in a few weeks.Keen to get involved?We would love to hear about your use cases for combining the worlds of Python and AIMMS.  We are looking for people wanting to test our early releases for their projects. The more feedback the better. Please send an email to me, Jan-Willem, at j.w.van.crevel@aimms.com if you want to participate.  

SC Navigator 25.6.1Date March 24, 2025 New Features SC Navigator now offers SC Navigator ETL, a tool that automates data preparation via Microsoft Azure Data Factory by pushing transformed data into the application and eliminating the need for users to import Excel files or configure the REST API connection. This is available as an add-on module; please contact your account manager for more information. The results of the data validation are now stored when saving an input dataset. The stored data validation results will be read in when loading that dataset, instead of re-executing the data validation logic. This improves the performance of loading a dataset, especially when data validation takes some time. A result of this change is that a new column “data_validation_version” is added to file “_dataset_info.parquet”. This value can be left 0 when you upload your dataset directly to the Azure Data Lake. Improvements On page Power BI, the styling of the Edit/View Mode dropdown list has been improved, such that it no longer looks read-only. As part of an improvement to the UI and UX of the AIMMS WebUI, the two main font families, Roboto and Montserrat, have been replaced with Inter Variable. Bug Fixes When using the Customer filter, deselecting individual customers from different groups unintentionally removed all customer locations. The Warehouse filter was missing two widget actions (Switch to Location View, Clear All). The Supplier Group filter was displayed even when no supplier groups were present in the data. The change that was made in the previous release (“Limiting the number of source locations could result in an unexpected infeasibility when small Capacity Consumed numbers were used, relative to the amount of products produced.”) could negatively impact the performance for some datasets. In the release of February 10, 2025, the type of the column “sequence_order” was changed from string to int32. This was not in line with the documentation, and this new version will have the type changed back to “string”.

SC Navigator 25.5.1Date February 25, 2025 New Features The Infeasibility Analysis functionality now has a new option in the Violations table: “Allow Missing Lanes”. Improvements In case of an Infeasibility Analysis Demand Violation, a new reason type has been added: “Missing Lanes”. Data validation has been added to detect locations that are (at least from one direction) disconnected from the network. Any input dataset that is saved, now also contains a file (“parquet-input-definition.xlsx”) with an overview of all the attributes in that dataset. Bug Fixes Opening the Filters side panel would display an error message about an unknown identifier. On page Data - Transport, the Transportation Data table could be empty. In some cases, the data validation was not able to point out when Inventory Cover was used without available inventory at a warehouse. Limiting the number of source locations could result in an unexpected infeasibility when small Capacity Consumed numbers were used, relative to the amount of products produced. On page Infeasibility Analysis, the input data was not appearing in the tables.

Dear Community,We are excited to announce the release of the AIMMS WebUI Library 25.1.1 version, packed with exciting enhancements and improvements aimed at enhancing your user experience. Below is a detailed overview of what's new: The Advanced Table Editing feature, developed about three years ago, brought significant enhancements to the Table widget, allowing for efficient manipulation of tabular data. This included the ability to copy and paste data between WebUI tables and to external sources. In response to customer feedback, we've further expanded this functionality to support the direct pasting of data from external sources like Excel and Google Sheets into WebUI tables.   In the latest WebUI Library feature release, the Table (v2) widget has been upgraded with a "Read Only" feature, allowing you to display data as non-editable and prevent users from making changes. Initially offered as a per-identifier option, we've now responded to customer feedback by adding a "Read Only" option in the "Defaults" section of the Contents tab. By default, the per-identifier setting will inherit its value from this default, unless you choose to override it. This update simplifies the process by enabling you to set all content identifiers to "read-only" at the default level, improving both the process and user experience compared to setting this option individually for each identifier.    We hope these features enhance your applications and contribute to an even better user experience. Your feedback and suggestions are highly valued, so please share them in the comments. Thanks,Madhu KrishnappaAIMMS WebUI Product Owner

SC Navigator 25.4.1Date February 10, 2025 New Features The model has been extended with the ability to create a Power BI Embedded report, based on the data in the application. This is available as an extra module, please contact your account manager for more information. Improvements The exported results are also used in the new Power BI Embedded feature and therefore, the results have been extended with the sheet/files with the element description as well as the sheet/files with the group definitions. Also the following attributes have been added: Start Date and End Date to Period Definition/period-definition, Longitude and Latitude to Location Definition/location-definition, IsSKU, IsUnion, and IsIntersection to Product Definition/product-definition. The fields “adopted” and “active” in the _dataset_info.parquet file were written as int32. However, if the cell was empty, pandas would interpret this as NaN (Not a Number) and therefore as float. This lead to a situation, where the model was no longer consistent with the file specification. From now on, the model will actually write 0 to prevent this issue. Bug Fixes When using Bill of Materials that create two or more products, the Cost To Serve and End to End reports were incorrect. On page Control Panel for the table Min/Max Constraints, the Show All Attributes action was not working properly. In some cases, the constraint “Max # of Sources for Customers” in combination with product groups could result in an infeasible model.

SC Navigator 25.3.1Date January 28, 2025 New Features It is now possible to also run Center of Gravity in the background, allowing you to continue using SC Navigator without interruption, including starting additional solves. Once Center of Gravity runs are completed, a notification and/or dialog page will appear to inform you. If you prefer not to solve Center of Gravity in the background, you can turn off the ‘Solve in Background’ option on the Control Panel page in the Model Control table. Improvements The Take or Pay Costing documentation has been updated. It now includes a more detailed description and also a comparison with Stepwise Transport Costing. Bug Fixes On page Results - Production, the node colors on the map didn’t always reflect the production utilization status. When a location had both a warehouse and production, the node color reflected the utilization status of the warehouse instead. In SC Navigator 25.2.2 we introduced an improvement, designed to enhance the optimization model for certain datasets with minimum production capacities. However, this change inadvertently caused infeasible solutions for datasets without minimum production capacity.

SC Navigator 25.2.1Date January 16, 2025 New Features For (almost) all tables on all the Data pages, a new action is available in the three dots menu (top right corner of each table): Show All Attributes. This action allows you to view and edit all available columns/attributes, even if they currently contain no data. You can hide the columns without data, by using the action Only Show Attributes With Data. Improvements The Release information dialog that shows up the first time you start a new version of SC Navigator, has an improved look and now shows all the release notes of all previous SC Navigator versions, just like the Release Notes page in our documentation. The data validation for rate cards was inefficient. The code has been modified to speed up this process. Bug Fixes The calculated rate card cost could be wrong if you used a Rate Cards UOM that was different from Default/Base UOM, in combination with rate card attributes Cost Per Distance, Cost Per Trip, or Minimum Cost Per Trip. If you use this combination in your model, please contact us at support@aimms.com.

SC Navigator 25.1.1Date January 9, 2025 New Features Previously, every SC Navigator user had access to 1 solver. As of Monday January 6th 2025, we introduced Hyperscaling, which means that every user has access to 25 solvers at the same time. Instead of processing scenarios one-by-one (sequentially), multiple scenarios are now solved in parallel, significantly saving users time and boosting productivity when solving multiple scenarios at the same time. You can read more about Hyperscaling in this blog post. Improvements In the previous version, a user was not allowed to load a Results dataset that was created when the user had access to more modules than currently are allowed. This is now allowed without any restrictions, unless it contains data for attributes that are no longer allowed. In those cases, you will still be able to load the data, but you are not able to run and/or save it again. The documentation has been updated to include detailed instructions on How to customize your Login page?. Data validation is added to make sure that a ‘Default/Base UOM’ is given when multiple units are used in the input data. Data validation is added to make sure that Product and UOM combinations used in the Bill Of Material, have an unit conversion specified. The ‘Save’ buttons are renamed to ‘Save As’, to better match their functionality. The System Configuration app is by default only available for the Admin user. When other users were assigned access to it, these rights would be reset (removed) after a new release of the System Configuration app. Now, these rights are transferred to the new version of the app. Bug Fixes Circular dependencies in the Bill of Material data previously caused a fatal data validation error saying that the Capacity data is too large. This is resolved and circular dependencies now only trigger the warning about circular dependencies. In the Data Navigator application, selecting a dataset from the Dataset Overview table and pressing the ‘Load Selected Dataset’ button will no longer result in an error. The Infeasibility Analysis was not working correctly in combination with the new Solve in Background option turned on. Now the Infeasibility Analysis page correctly becomes visible with the results when viewed using the Overview of Solutions dialog. An input dataset that was saved, after a results dataset was saved, was not correct. It contained only very limited amount of data, and reading it in, would lead to data validation errors, that were not present before. In some rare cases with multiple production facilities at one location and inventory build up, the production cost could not be correct, and too much cost was assigned to the System Cost.

A Python library to make it really easy to use AIMMS Cloud REST servicesIn response to the rapid growth of the use of the REST services on AIMMS Cloud we launched: the AIMMScloud Python library for working with the AIMMS Cloud REST API.Why this matters:Easily extend your CI/CD pipelines to AIMMS apps to streamline publication and even testing of your applications Easily access the REST services for programmatically running large numbers of optimization runs for example for scenario studiesIntegration in minutes with AIMMScloudThe AIMMScloud Python library wraps the AIMMS Cloud REST API in easy-to-use Python classes. Allowing you to publish AIMMS applications, running optimization tasks and accessing results becomes straightforward with AIMMScloud. The library was designed to help you achieve results in minutes. To add it to your Python project just use  pip install AIMMScloud For more information see: https://pypi.org/project/AIMMScloud/ Additional informationhttps://how-to.aimms.com/Articles/571/571-publish-run-delete.html https://documentation.aimms.com/cloud/tasks.htmlNext stepsThe AIMMScloud Python library is under active development, and you can expect more releases in the coming months.SupportIf you have any questions or suggestions, please reach out to us at support@aimms.com.

SC Navigator 24.14.1Date December 12, 2024 New Features It is now possible to run optimizations in the background, allowing you to continue using SC Navigator without interruptions, including starting additional solves. Once all active optimization runs are completed, a notification and/or dialog page will appear to inform you. If you prefer not to solve an optimization in the background, you can turn off the ‘Solve in Background’ option on the Control Panel page in the Model Control table. Two new attributes are introduced on the ‘Transport Cost’ sheet: ‘Base Case Minimum Capacity’ and ‘Base Case Maximum Capacity’. These attributes allow for more flexibility in base case modeling. Another two attribute are introduced on the ‘Location Period’ sheet: ‘Receive into Warehouse’ and ‘Dispatch from Warehouse’. They indicate, respectively, whether all inflow and all outflow should be received/dispatched via a warehouse at the location. See Location Related Attributes for details. Several new attributes are introduced on the Production Routing sheet: ‘BOM Fixed Cost’, ‘Force Open’, ‘Force Close’, ‘Opening Cost’, ‘Closing Cost’, ‘Open as Group’, and ‘Initial Status Closed’. These attributes allow for more flexibility in Bill of Material modeling. When exporting results, the Production BOM results sheet will also have new attributes: ‘BOM Fixed Cost’, ‘BOM Variable Cost’, ‘Opening Cost’, ‘Closing Cost’, ‘Force Open’, ‘Force Close’, and ‘BOM In Use’. More information can be found in the section How the Bill of Material works in SC Navigator?. Bug Fixes When trying to download results from older datasets, an error could occur: “Something went wrong when creating the file.” Now, all Results Datasets can be downloaded. In previous versions, the ‘Grid Distance’ (in Center of Gravity) was not adjusted based on lead time and maximal driving time. This could lead to situations where the grid distance was too large for the given parameters. This version will adjust the ‘Grid Distance’ to make sure that this is always within the recommended upper and lower bound, by moving it to the nearest bound. Theses bounds will now also consider customer ‘Lead Time’. The “Refundable with Limit” functionality was not working correctly. A new version of the Inventory Planning app has been published. When starting the previous version (24.10.1), Inventory Planning raised an error. The error prevented you from loading a configuration and dataset.

 We have built a new version of the AIMMS Cloud user screens such as the login page and the app launch page: Users will notice a new look and some minor changes in how to perform some specific tasks such as uploading new applications and user management.  Behind the scenes we have replaced the old Scala code with modern Javascript/React code that will be easier to maintain and change for us. These two screen shots show you the new look. What remained the same and what changes?No changes to finding and launching apps  Only for administrators and app developers: small changes to publishing apps and to user managementWhat is the timing?Roll-out will start in December 2024. We are using a phased approach for roll-out to customers: some groups earlier than others. We are also using a phased approach for development and roll-out of different pages/features. As a result you may discover some less-frequently-used pages still have the ‘old’ look while the other pages have a the new look. We expect to have completely replaced the ‘old’ somewhere in 2025.The making ofAlthough on the surface this looks like a minor cosmetic change, this change is a bit like an iceberg; by far the biggest part lives below the surface.A team of software engineers have spent more than a year on a redesign of the technical architecture and 100% recoding of the portal application. All the design concepts were reviewed and redesigned where necessary. Contemporary coding standards and software engineering methods were applied. Also, many of the interfaces with the backend components were replaced with REST API calls, in preparation of the upcoming replacement of the many backend components. And then everything was rigorously tested of course.More informationFor more information and questions, please contact us at support@aimms.com.

Gurobi 12.0 has been recently released. In our eyes the most important enhancements are the performance improvements and support for (global) nonlinear optimization for models with integer variables (MINLP) or without (NLP). AIMMS 24.6 will contain a new version of our ‘Gurobi link’ that allows you benefit from these Gurobi 12.0 enhancements with your AIMMS projects. Important Notice on Global Nonlinear OptimizationGlobal nonlinear optimization involves identifying the absolute best solution across a complex solution space, often containing multiple local optima. This process is inherently more challenging than local nonlinear optimization, which focuses on finding the best solution within a specific region of the space. As a result, global optimization may require more sophisticated algorithms, computational resources, and time to achieve reliable results. Please keep these factors in mind when using a global optimization solver like Gurobi.More informationAnd if you have any questions, please contact our support team at support@aimms.com.

We're releasing our new and improved Math Program Generator (MPG), designed to accelerate the generation of LP and MIP models in AIMMS 24.6.Key Features and Benefits:Performance Boost: On average, expect 2x faster generation times for LP and MIP models. The impact on total solve time will depend on the model and the data. Compatibility Assurance: The new MPG automatically checks your model's compatibility. In cases where it's not supported, such as with Stochastic Programming and Robust Optimization, it'll seamlessly revert to the old MPG, alerting you (only the app developer, not the end user) with a warning. Flexible Opt-Out: If needed, you can easily disable the new MPG globally or for specific solve requests, giving you full control.Additional Insights: Our extensive testing across hundreds of models showed unchanged results with the new MPG. All future AIMMS versions will be equipped with the new MPG. End-users will not be notified about the MPG switch; we aim for a smooth and invisible transition, with you at the helm. We're proud of this complex project and its potential to reduce waiting times. We encourage you to share your experiences with us—your feedback is instrumental in our ongoing enhancement efforts. For technical details, opt-out instructions, or other inquiries, please reach out to support@aimms.com.

SC Navigator 24.13.1Date November 26, 2024 New Features The user experience for scenario planning in SC Navigator has undergone a significant overhaul. Key enhancements include a more intuitive layout for Scenario, Network Scenario, and Batch Optimization pages, a streamlined process for creating scenarios, improved visibility of scenario contents, and the ability to edit scenarios, among other upgrades. These improvements aim to simplify scenario planning, boosting user efficiency. Read more about the new Scenario, Network Scenario, and Batch Optimization functionality in our documentation. Bug Fixes Transport ratios specified for a period group (a regular group, not a curly bracket group) in the 'Period 2' column of sheet Transport Ratio, were not disaggregated correctly to all periods in that group. In the Load Data dialog page, you can click on Upload Excel File and then cancel the Excel file selection. If after that, you would load a dataset, a data issue was falsely raised about the file not having been read correctly. On page Control Panel, several column headers in the tables have been updated to match with the corresponding attribute names. On the KPI Results dialog page, the label Weight Factor has been renamed to Scaling Factor. On the KPI Results dialog page, the tables only showed data for the active scenario, not for the compared one(s). After loading a dataset, the warning "Attribute names have been replaced with newer names." no longer occurs. This warning will only occur in combination with loading an Excel template. On page Results - Transport, The highlighting in the Transport Ratio Results table didn't work when the data was close to the minimum or maximum value. If you unselected some warehouses on the Warehouse filter, that will also unselect the products that are only used by those warehouses on the Product filter. In that case the Product filter is now also marked as 'filtered'. Previously, when uploading files larger than 128 MB, SC Navigator would become unresponsive. Now you will get an error message indicating the maximum file size has been exceeded. The contents of the file "parquet-results-definition.xlsx" is now consistent with the generated files.