Forum Discussion

ZachChin's avatar
ZachChin
New Member
20 days ago

Dataset Refresh REST API returns 415 "Model-based dataset" error

Since 2026-08-14, calling the Refresh Dataset REST API (POST /v1.0/myorg/groups/{workspaceId}/datasets/{datasetId}/refreshes) on any dataset in my tenant fails with:   HTTP 415 UnsupportedMediaType...
Need Help
tharunkumarRTK's avatar
tharunkumarRTK
Super User
13 days ago

ZachChin​ 

Few scenarios which you can test

  1. Have you tried performing the same activity using a NEW Entra app registration? (make sure you grant sufficient permissions and roles before doing this)
  2. Have you tried performing the same activity for a different dataset in a different workspace?
  3. Have you tried removing the workspace from trail capacity and triggering a refresh? May be try moving the workspace to a different capacity and try again?
  4. By any chance you migrating your capacity from one region to the other?
  5. Have you tried performing the same activity from Fabric data pipelines or using a Power BI action in Power automate?