Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Ginny,
Before you can start administering a client's account, the client must authorize you as a delegated administrator. To get client approval, you first send them an offer for delegated administration, which you can include with a trial invitation or purchase offer. You can also offer delegated administration to your client at a later time.
An article for your reference: Partners: Offer delegated administration
As our forum mainly focuses on Office 365 Business services, about this kind of partner issue, please contact the partner support directly for dedicated help.
Thanks for your understanding.
Lance