Hi @Tiago Silva ,
Thank you for your post!
When it comes to the error message that you received, this is most commonly caused by the signed-in user not being a member of the proper role for the MPN account in Partner Center- see https://learn.microsoft.com/en-us/azure/active-directory/develop/publisher-verification-overview#requirements (Requirements) for a list of eligible roles and see common issues for more information. Can also be caused by the tenant the app is registered in not being added to the MPN account, or an invalid MPN ID.
For more info - https://learn.microsoft.com/en-us/azure/active-directory/develop/troubleshoot-publisher-verification#mpnaccountnotfoundornoaccess
If you have any other questions, please let me know.
Thank you for your time and patience throughout this issue.
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