How to find the customer ID/Tenant ID of the customer? 32 characters long
Partner Center–>Customers–>Customer–>Account
How to find the MPN/CSP ID?
Partner Center–>Settings–>Oraganization Profile–>Identifiers
How to find the Tenant ID for the Partner? 32 characters long
Partner Center–>Settings–>Oraganization Profile–>Azure AD Profile