Dynamics 365 Business Central: controlling the Summary system part.

Dynamics 365 Business Central 2025 Wave 1 release (version 26) introduced a new Summarize capability for Copilot. With this feature a new Summary FactBox appeared on card and document pages (standard and custom):

With this Summarize feature, Copilot is able to:

• generate a summary of the record (tailored to your role and focus on what matters to you) with the top things you need to know, plus more insights available on demand.
• search through data from the current page, from FactBoxes, and from related pages and statistics to identify what’s urgent and important.

You can interact with the AI-generated summary and refresh it on demand when needed:

But in Dynamics 365 Business Central version 26 this Summary system part cannot be controlled.

With Microsoft Dynamics 365 Business Central 2025 Wave 2 release (version 27) Microsoft will add a new system part of type Summary that can be controlled on Card, Document, and ListPlus pages. This new system part allows developers to hide or configure the Summary factbox when it’s not needed.

Starting from Dynamics 365 Business Central version 27, you will be able to control the Summary part in page and pageextension objects using the new DefaultSummaryPart identifier. For example, to hide the Summary part page on the Customer Card page, you can do the following:

To add a Summary part on your custom pages, you can do the following:

Some notes to remember:

• You can only have one Summary system part per page.
• As said before, you cannot add a Summary part to a List page. You will receive a “strange” error message like the following:

Original Post https://demiliani.com/2025/09/03/dynamics-365-business-central-controlling-the-summary-system-part/