Your app package failed the validation

Question

Your app package failed the validation

Naratama Pranata 0

I created an agent in Copilot Studio. I published it to teams channel. I clicked "See agent in Teams" (picture 1), but it returns an error "Your app package failed the validation" (Manifest parsing error message unavailable) as seen in picture 2. How to solve this issue? Thank you in advance

Nivedipa-MSFT 3,991 Reputation points Microsoft External Staff Moderator

2026-04-01T10:05:58.29+00:00
Hello Naratama Pranata - Thanks for bringing this issue to our attention.
"Manifest parsing error" usually means missing or invalid metadata in the Teams channel config.

In Copilot Studio → Channels → Teams → Edit details — fill in all fields (descriptions, URLs, icons)

Icons must be exactly 192x192 and 32x32 PNG

If it still fails, click "Download manifest" ZIP → upload manually at dev.teams.microsoft.com to see the actual validation error

1 answer

Your answer

Nivedipa-MSFT 3,991 Reputation points Microsoft External Staff Moderator

2026-04-01T10:05:58.29+00:00

Hello Naratama Pranata - Thanks for bringing this issue to our attention.
"Manifest parsing error" usually means missing or invalid metadata in the Teams channel config.

In Copilot Studio → Channels → Teams → Edit details — fill in all fields (descriptions, URLs, icons)

Icons must be exactly 192x192 and 32x32 PNG

If it still fails, click "Download manifest" ZIP → upload manually at dev.teams.microsoft.com to see the actual validation error

Answer 1

Hi Naratama Pranata

Thank you for reaching out to Microsoft Q&A forum

Based on your description, I understand that you successfully created and published a Copilot Studio agent to the Teams channel, but when you select See agent in Teams, Teams shows “Your app package failed the validation” and reports “Manifest parsing error message unavailable.”

In this context, I think you could try the workaround approaches below to see if it can help you:

Download the Teams app package from Copilot Studio and install it using the supported upload path. Copilot Studio can generate a Teams app package (.zip) for your agent from Availability options (including Download .zip), and using this package to install/upload can bypass the failing “See agent in Teams” deep-link step.
Verify that your organization allows Power Platform apps/agents to be added to Teams. Copilot Studio publishing prerequisites indicate the tenant must allow Power Platform apps to be added to Teams for users to install or find the agent in Teams experiences.

If the issue started recently and persists across retries, treat it as a potential service-side validation/publishing issue and I highly recommend raising a support ticket via Admin Center to directly reaching out to specific Teams support team of Microsoft

Hope my answer will help you.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Steven-N 23,700 Reputation points Microsoft External Staff Moderator

2026-04-02T07:34:36.2+00:00

Hi Naratama Pranata

It has been a while and I am writing to see how things are going with this issue.

Have you had a chance to check the replies provided?

Any update would be appreciated.

Share via

Your app package failed the validation

1 answer

Your answer