@Peter Lemmen Thanks for reaching out. I believe you are talking about the Build-in Azure Consmo DB connector which currently does not support the AAD authentication. The inbuild connector is still in preview and as of now there is no ETA for the consmo DB inbuild connector to be GA. I have reached out to my team to confirm if AAD authentication will be supported for the consmo DB inbuild connector and I will update my answer once I hear back from my team.
In case if you want to leverage the AAD authentication then I will suggest you to leverage the Azure consmo DB Azure
connector which supports the AAD authentication for cosmo DB connector in your standard logic app.
**Update: **
The current ETA to support AAD and GA the Cosmo DB inbuild connector by Spring 2023.
Please 'Accept as answer' and ‘Upvote’ if it helped so that it can help others in the community looking for help on similar topics.