Power Platform Community Forum Thread Details

Hi everyone,

I’m running into a persistent issue with Excel Online (Business) – Add a row into a table in Power Automate.

Flow details

Adds 1 row per run (no Apply to each)
No parallel/concurrent runs
Excel file stored on SharePoint Online
Target table originally had ~7,500 rows (tested again with an almost empty table)
Same flow previously worked without issues

Issue

The action runs for several minutes and then fails with:

Status: 504 GatewayTimeout
Message: Request to Graph API has timed out. Error code is 'UnknownError'. Gateway Timeout
Connector source: excelonline-we.azconn

Power Automate shows that a retry was attempted, but the action still times out.

Additionally, we sometimes see that even when the action times out (504), the row is still inserted into the Excel table minutes later. In other cases, multiple rows get inserted (likely due to retries). Sometimes the flow continues to the next steps after a long wait, but most of the time it fails. This looks like the write operation eventually commits in Excel/Graph, but the connector response times out, which also introduces duplicate inserts when retries occur.

Categories:

Power Automate Desktop