What should I test?Check that Preflight passes, the approval email arrives, the approve/reject link works, and the linked Google Sheet status updates. External-owner decisions can take approximately one minute to appear; refresh the Sheet before treating the write-back as failed.
What does “Requested entity was not found” mean?Earlier FormFlow versions could run the approval page under an identity that could not read an externally owned response Sheet. Version 73 routes the authenticated decision back through the form owner’s permissions. Reopen FormFlow, save the configuration once, submit a new test response, then allow approximately one minute and refresh the Sheet.