Since there is a delay of 45seconds beetween the disable autorenew and the window of TOC to be accepted a creation of an API on the https://developer.appxite.com/ platform that allows distributors to activate (TRUE) or deactivate (FALSE) the auto-renew of Adobe subscriptions using the end customer's ERP ID.
There already is a platform API - not specific to Adobe, which allows to edit a subscriptions renewal status: https://developer.appxite.com/api-details#api=orders-api-3-1&operation=orders-create-op&definition=Subscription%20Edit:%20Renew%20on/off%20-%20Create%20Order
Would this work in this case.