500375 – Microsoft Copilot (Microsoft 365): Larger file upload support in Copilot Studio agent builder

Product:

Copilot

Platform:

Android, iOS, Web, Windows Desktop, World tenant

Status:

In development

Change type:

Links:

Details:

Copilot Studio agent builder in Microsoft 365 will support larger file uploads of up to 512 MB.

Change Category:
XXXXXXX ... free basic plan only

Scope:
XXXXXXX ... free basic plan only

Release Phase:
General Availability

Created:
2025-08-13

updated:
2025-08-13

Docu to Check

XXXXXXX ... free basic plan only

MS workload name

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summary for non-techies**

XXXXXXX ... free basic plan only

Direct effects for Operations**

Increased File Upload Limit
Users may experience issues with existing workflows if they are not prepared for the larger file size, potentially leading to confusion or errors in file handling.
   - roles: End Users, IT Support
   - references: https://techcommunity.microsoft.com/t5/microsoft-365-blog/introducing-microsoft-copilot-in-microsoft-365/ba-p/3731230, https://www.microsoft.com/en-us/microsoft-365/blog/2023/10/01/whats-new-in-microsoft-365-october-2023/ " target="_blank" rel="nofollow noopener noreferrer">https://www.microsoft.com/en-us/microsoft-365/blog/2023/10/01/whats-new-in-microsoft-365-october-2023/

Performance Impact
Without proper preparation, the increased file size may lead to performance degradation in the application, affecting user experience and productivity.
   - roles: End Users, System Administrators
   - references: https://www.microsoft.com/en-us/microsoft-365/blog/2023/10/01/whats-new-in-microsoft-365-october-2023/, https://www.zdnet.com/article/microsoft-copilot-gets-new-features-in-microsoft-365/

Configutation Options**

XXXXXXX ... paid membership only

explanation for non-techies**

Microsoft has introduced a change in its Copilot Studio agent builder within Microsoft 365, allowing users to upload larger files, up to 512 MB. This update is akin to upgrading the size of a suitcase you can bring on a flight. Previously, you might have been limited to a smaller carry-on, restricting the amount of clothing or items you could pack. Now, with a larger suitcase allowance, you can pack more essentials or even a few extras without worrying about space constraints.

For those working with Copilot Studio, this means you can now include more comprehensive data or larger documents in your projects without needing to split them into smaller parts. It's like being able to bring your entire presentation or project files in one go, rather than having to send them in separate emails or folders. This change is designed to streamline workflows and make it easier to manage and integrate larger sets of information.

Whether you're using Microsoft 365 on a desktop, mobile device, or through the web, this update is applicable across all platforms, ensuring a consistent experience no matter how you access your tools. It's part of an ongoing effort to enhance productivity and flexibility for users, allowing them to focus more on their tasks and less on technical limitations.