Forum Discussion
DM_GWPipeline_Gateway_MashupDataAccessError (Information is needed in order to combine data)
Check your settings again, looks like you didn't specify all of the privacy levels.
You talk about Power BI Desktop Data Configuration or Power BI Service (Gateway)?
- lbendlin1 year ago
Super User
Power BI Service. Not gateway. Service.
- ulysseshubner1 year agoFrequent Visitor
This has all privacy settings, the error occurs when I merge a sharepoint abla with a web api source table, if I remove the merge, it updates normally
- lbendlin1 year ago
Super User
The merge likely fails because the privacy settings do not match between these two sources.
Generally your approach of merging a SharePoint source with a Web API source is a VBI (Very Bad Idea) as you now require a gateway for both sources, including the SharePoint. And it is an irreversible process - from here on you can never not use a gateway for the sharepoint even if you remove the merge.
Don't do it. Don't merge in Power Query. Let the Power BI data model do the join for you.