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Can't Connect to Fabric #786
Description
Got this error when trying to connect to Fabric with information from Anas: Both hosts are failing with the same auth error 18456. The ODBC driver is working and reaching the servers — the issue is that the service principal credentials themselves are being rejected. This could mean:
- The service principal hasn't been added as a user in the Fabric workspace/database
- The client secret may have expired or been rotated
- The service principal needs to be granted explicit access in Microsoft Fabric
You'll need to verify in the Microsoft Fabric portal that:
- The service principal (14af9081-ed89-455c-bedf-7e85a39f1805) has been added to the workspace with at least Viewer or Contributor role
- The client secret (Afv8Q~vP...) hasn't expired
Metadata
| Field | Value |
|---|---|
| CLI Version | 0.6.0 |
| Platform | darwin |
| Architecture | arm64 |
| OS Release | 24.6.0 |
| Category | bug |
| Working Directory | migration |
| Session ID | ses_20b9b20b0ffeN3oMA3g38RaKRg |
Activity
anandgupta42 commentedon Nov 5, 2026
Closing this support thread: the error (18456) was the service principal being rejected by Fabric, a tenant permission issue rather than a product bug. Please open a new issue if a connection still fails with valid credentials.