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You may encounter this error when performing read/update/write operations to a Google sheet from a form/flow. The Google API can never be a replacement for a database in terms of reliability. There are no SLAs associated with free google accounts. makes multiple http calls to the Google API with no guaranteed SLA.  As the load increases, the chances that the Google service might fail increases. If you encounter the 'internal server error', the only thing to do is to try again later.

Error when Uploading Files to Google Drive

The error "Could not POST data to http://google-connector:8080/google/documents/upload/upload. HTTP status 500" when uploading files to Google Drive is caused when the file size exceeds its maximum permitted size of 1048576 bytes (1Mb). In versions 2.3.1+ of the Google connector there is no longer a restriction due to file size. The maximum permitted file size is set to unlimited by default.

Google Connector Known Issues

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