Recently, an error message occurred when trying to save a cloud flow with a "When a HTTP request is received" trigger and a "List Rows" action. The error message stated that the flow client error returned with a status code of "BadRequest" and details about the invalid open API flow. This error occurs when trying to enable the "Suppress Headers" or "Schema Validation" option for the trigger while using actions that connect to Open API services within the same flow. It seems to be a limitation in Power Automate. The workaround is to create a separate child flow for the Open API services and use these options in the parent flow.
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