I will assume that in your respective
MDE accounts you are both set to share plans with each other. If you book something in your MDE, an ADR, for example, and include her as a guest on that ADR, does the ADR show up on her MDE? If so, she’s linked correctly and good to go with her AP. (I can see my DH’s AP in my MDE too.) If you include her in plans in your MDE and she cannot see them in her MDE account, then she is not properly linked to your MDE account.