I found a couple of publicly asked questions about the same issue, but none was resolved.
We have a Microsoft Partner account; it already has the Hardware Program and CSP Program added. Now we need to add the Developer Program so we can publish our applications at the Windows Store.
However, when I try to add the Windows & XBox Developer program, I receive this error:
Sign in with another account You are signed in as firstname.lastname@example.org which is not associated with a Partner Center account. If you believe this is an error, try deleting your browser cookies and then do one of the following: - Sign in with an Azure AD user account that is already associated with a Partner Center account - Sign in with a Microsoft account that is already associated with a Partner Center account - Sign in with a Microsoft account that you’d like to register for a new Partner Center account
Tried this from different machines and different browsers -- the same result, so it's not about browser cookies/cache. And this account is already associated with the Partner Center (and we already have two partner programs added).
So, how do I add the Developer Program?