Unable to update data source via Web API

[SDovermann]

Hello dear community,

I created a data source for a REST API via Power BI Desktop. Authentication takes place via an X API key.

The connection works without any problems in Power BI Desktop, but when I publish the project and want to access and update it in the Power BI online portal, I get the following error message:

Fehler bei der DatenquelleDie geplante Aktualisierung ist deaktiviert, weil für mindestens eine Datenquelle Anmeldeinformationen fehlen. Um die Aktualisierung erneut zu starten, wechseln Sie zur Einstellungsseite dieses Datasets, und geben Sie Anmeldeinformationen für alle Datenquellen ein. Aktivieren Sie dann die geplante Aktualisierung erneut.

I think the problem is the missing X API KEY in the header, which doesn't seem to be available in the online version.

Is there a solution?

Thank you!

[SDovermann · Accepted solution]

Many thanks for the quick response!

In the meantime I was able to solve the problem myself.

I had to confirm the authentication again without checking the Test box.
After that it worked.

[GilbertQ]

Hi @SDovermann 

You still have to connect it in the data source settings. You will change the authentication to Anonymous.

I do assume that the authentication is stored in the headers?