GRAPH API error: Create Upload Session: HTTP result - 409 Conflict

Has anyone encounter issues when using https://learn.microsoft.com/en-us/graph/api/resources/driveitem?view=graph-rest-1.0#instance-attributes? Particularly the property microsoft.graph.conflictBeha...

Microsoft Graph

sharepoint

Kidd_Ip

MVP

Jun 04, 2025

How about trying "rename" instead of "replace" to see whether the PAI correctly process the request.

tzengy

Copper Contributor

Jun 04, 2025

Thank you for the response. "rename" still failed. The message was the same:

NOTE: 409 Conflict

NOTE: PROCEDURE HTTP used (Total process time):

real time 0.17 seconds

cpu time 0.01 seconds

NOTE: Create Upload Session: HTTP result - 409 Conflict

WARNING: Upload session not created!

{

"error": {

"code": "nameAlreadyExists",

"message": "A file with the same name is currently being uploaded. Change the filename and try to save again.",

"innerError": {

"date": "2025-06-04T12:15:26",

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GRAPH API error: Create Upload Session: HTTP result - 409 Conflict

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