Hello @tzuyi liao
Thank you for posting this concern on this community.
I fully understand your request and I would be sharing my 2 cents here below:
I would like to know if the UPN (User Principal Name) or Username might be having more than one Azure tenant subscription access.
Do you know if that's the case?
Looking forward to hearing from you
Cheers,
Please "Accept the answer" if the information helped you. This will help us and others in the community as well.