Hi @Rana Mansoor ,
to which Microsoft Entra ID Tenant are you referring to?
You should contact the administrator of the Microsoft Entra ID Tenant you want access/permissions using your IBM account.
If it is your Microsoft Entra ID Tenant login with an account with adminstrator permission and invite your IBM account. After this step is done provide the required permissions/role memberships to this IBM account.
(If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)
Regards
Andreas Baumgarten