Forum Discussion
Power BI Service Refresh Issue – COM Error: mscorlib, Task Was Canceled
Subject:
Power BI Service Refresh Issue – COM Error: mscorlib, Task Was Canceled
Body:
Request ID: 0be60ed7-f7d2-da0a-139d
Time: 2025-11-04 11:00:20Z
Issue Summary:
The dataset refresh works without issues in Power BI Desktop but fails in Power BI Service with the error:
COM error: mscorlib, A task was canceled.
Data Source:
- Dynamics 365
- SharePoint List
Details:
#1 Start: 4:15:08 pm End: 4:16:54 pm Duration: 1m 45s Status: Failed
#2 Start: 4:17:59 pm End: 4:19:41 pm Duration: 1m 42s Status: Failed
#3 Start: 4:21:41 pm End: 4:23:23 pm Duration: 1m 42s Status: Failed
#4 Start: 4:28:37 pm End: 4:30:20 pm Duration: 1m 42s Status: Failed
Steps Tried:
- Verified credentials for Dynamics 365 and SharePoint
- Refresh works fine in Desktop
- No gateway issues observed
Request:
Please advise on possible causes or solutions for this error in Power BI Service. Is this related to timeout, gateway configuration, or service limitations?
Hi Jawahar1998,
Since the issue persists after verifying configuration and model optimizations, I’d recommend raising a support ticket through the link below so that backend engineers assist to solve the issue:
Create a Fabric and Power BI Support Ticket - Power BI | Microsoft Learn
Thank you.
4 Replies
Hi Jawahar1998,
Please refer to the following links which address your issue and outline the troubleshooting steps:
These resources explain the possible causes (such as OAuth token expiration or service timeout) and provide steps to resolve the issue.
Thank you.
Hi Jawahar1998,
Have you had a chance to review the solution we shared earlier? If the issue persists, feel free to reply so we can help further.
Thank you.
I have tried following your instruction but unfortunately doesn't help me to fix. i have tried to edit privacy levels and reduce the transformation steps etc.
Hi Jawahar1998,
Since the issue persists after verifying configuration and model optimizations, I’d recommend raising a support ticket through the link below so that backend engineers assist to solve the issue:
Create a Fabric and Power BI Support Ticket - Power BI | Microsoft Learn
Thank you.
