Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
To better understand how the Microsoft 365 tenant was provisioned, could you please confirm:
- When you say you cannot log in, are you unable to complete the authentication process (such as MFA or verification) or do you not have the sign-in credentials for the Microsoft 365 administrator account?
- Did you receive any Microsoft 365 welcome or onboarding emails after purchasing the subscription?
- If so, do those emails contain a tenant name in the format @yourcompany.onmicrosoft.com?
- During the purchase or verification process, were you provided with an administrator account (for example, username*@yourtenant.onmicrosoft.com*)?
This information can help determine whether the Microsoft 365 tenant was successfully created and which account should be used to access the Microsoft 365 Admin Center.