Engaging with Executive Sponsors

Hey GRR fam!

I started a new job recently as a CSM and one of our objectives is to engage with the Executive Sponsor. I'm inheriting the vast majority of my accounts from another CSM.

The challenge:

• The Executive Sponsor (ES) is generally not that involved nor uses the product. 
• My contacts are the Admins or Adoption Champions who are the "owners" of our product at their company
• In my transitions of accounts, the ES's were not involved in the transition call
• Sometimes when I reach out to the ES directly, the Admin will feel disrespected or they're gatekeeping the ES
• I don't have any prior relationships with the ES

Question:

1. How do I get at least a 15 min meeting with the Exec Sponsor without upsetting the Admin? (Granted, I've only had my hand slapped once)

THANK YOU SO MUCH!!