Need advice on selling subscription in bulk

A procurement person reached out regarding one of our apps and asked if they could manage “subscriptions in bulk” for their organization via their mobile device management system. They also want the ability to add and remove subscriptions on the fly.

I know Apple offers a Volume Purchase Program, but that’s only for paid apps and doesn’t cover IAPs.

Any ideas? So far I’m thinking:

• Purchase/manage seats on the web via Stripe;
• Create a new paid app specifically for them with a price point ~= LTV*2 years

Any ideas will be appreciated