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How to Fix Trigger Input Schema Mismatch Issue in Copilot Studio

This video shows how to fix the Trigger Input Schema Mismatch error in Copilot Studio when adding an agent flow.

This issue usually happens when the Prompt Tool outputs JSON and that JSON is passed directly into an agent flow, especially when using Create SharePoint item. The flow fails because the data doesn’t match the expected schema.

In the video, I walk through how to fix this by using Parse JSON inside the agent flow so the data structure matches the schema and the flow runs successfully.

While researching this issue, I noticed many people are running into the same problem and struggling to find a clear solution. This video is meant to help the community troubleshoot the issue and get their agents working as expected.

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Using a Snowflake-Managed MCP Server with Copilot Studio