web
You’re offline. This is a read only version of the page.
close
Skip to main content

Notifications

Announcements

Welcome to the Power Platform Communities
Season of Giving Solutions is Here!
Explore Copilot Studio Forums, Blogs & Galleries!
News and Announcements icon
Community site session details

Community site session details

Session Id :
Power Platform Community / Forums / Copilot Studio / Is there a limit on ho...
Copilot Studio
Suggested Answer

Is there a limit on how long messages can be?

(2) ShareShare
ReportReport
Posted on by AM-17071637-0
I was wondering if there's size restriction for messages in Copilot Studio or in Direct Line API.
Categories:
General topics
I have the same question (0)
  • Suggested answer
    Vinoth Selvam Profile Picture
    Vinoth Selvam 1,590 Super User 2025 Season 2 on at
     
     
    Yes there are some limits.  I believe it is 8000 chars.
     
    You can refer the below link for more details.

    If you are integrating Copilot Studio via Direct Line API, the Message Payload Size is Max 28 KB per message (including text, images, attachments, and metadata).


    Thanks.

    Visit my Blog
     
     
     
     

Under review

Thank you for your reply! To ensure a great experience for everyone, your content is awaiting approval by our Community Managers. Please check back later.

Helpful resources

News and Announcements

Welcome to the Power Platform Communities
Season of Giving Solutions is Here!
Explore Copilot Studio Forums, Blogs & Galleries!

Quick Links

Forum hierarchy changes are complete!

In our never-ending quest to improve we are simplifying the forum hierarchy…

Ajay Kumar Gannamaneni – Community Spotlight

We are honored to recognize Ajay Kumar Gannamaneni as our Community Spotlight for December…

Congratulations to the November Top 10 Community Leaders!

These are the community rock stars!

Leaderboard > Copilot Studio

#1
Michael E. Gernaey Profile Picture

Michael E. Gernaey 261 Super User 2025 Season 2

#2
Romain The Low-Code Bearded Bear Profile Picture

Romain The Low-Code... 198 Super User 2025 Season 2

#3
S-Venkadesh Profile Picture

S-Venkadesh 93 Moderator

Last 30 days Overall leaderboard

Featured topics

Announcing the "Microsoft Copilot Studio ❤️ MCP" lab
Welcome to the Copilot Studio forum!

Product updates

Microsoft Power Platform Community release plans