Hello Oliver,
The process is quite straightforward:
- Sign in to the Partner Center Membership page with your work account.
- Select Learning Profile from the left navigation menu bar.
- Select Link Microsoft Learn Profile, if not linked already. Follow the process of linking when prompted, by using your MSA account.
- View your MSA account there after you link it.
You can find more details about it here.
I hope it helps.
Best regards,
David