We tried to repro this issue by creating MS Teams meeting via Graph API and observed that we are able to send attachments in the meeting chat.
Tested in both MS teams web and desktop client (Microsoft Teams Version 1.6.00.14179)
Is there any error you are getting while sending the attachments?
Users are not able to send attachments in MS teams meeting chat when the meeting is created from API
Parth Kumar
66
Reputation points
Users are not able to send attachments in MS Teams meeting chat when the meeting is created from API
Microsoft Teams | Development
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Accepted answer
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Prasad-MSFT 8,981 Reputation points Microsoft External Staff Moderator
2023-05-29T06:44:09.93+00:00
1 additional answer
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Parth Kumar 66 Reputation points
2023-05-29T11:51:31.4533333+00:00 thanks for clarifying, I found that I have not assigned the required scope to chat in the App, which was causing the issue.