Hey everyone! I thought I would keep you updated on my journey.
I submitted a support ticket to Microsoft. I also didn't realize we hadn't installed this solution:
Alas, we have the same error even post-installation. We are using O365 accounts for now, but will attempt Azure AD access next.
We had the same issues publishing a consulting offer. It seems to be working now after using Azure Active Directory Authentication.
Best to give that a try.