Forum Discussion
Advocate IIIDeployment Pipelines API - Error with itemType DataPipeline via Service Principal only
Hi All, happy to report that MS support have now resolved this issue. I've confirmed its fixed in these regions UK South and West Europe
Super UserHi garddolau
Service Principals are NOT supported for deploying Fabric Data Pipelines via the Deployment Pipelines API.
This limitation is confirmed by both Microsoft documentation and multiple community reports. When you attempt to deploy a DataPipeline using a Service Principal, you typically encounter errors such as `DeploymentOperationFailed`, `UnknownError`, or `FeatureNotAvailable`.
• User accounts work, but Service Principals do not.
garddolauSupport was annouced during Fabcon 2025, the REST API pages were also updated, no mention of DataPieplines not being supported anywhere that I can find. Deployment Pipelines - Deploy Stage Content - REST API (Core) | Microsoft Learn