Edit a live custom plan, and the changes wait in a draft until you finalize. Finalizing asks when the company moves ("Immediately", end of period or a "Specific date") and how it pays: the card on file or an invoice with net terms. Immediate changes default to "Prorate and invoice immediately".

Already live: more ways to start a custom plan, Net 45 terms, backdated billing start dates, credit bundles in checkout, and "Committed quantity" as a minimum the customer can add to.

Docs: Custom plans and the Custom Plans API

Rolling out in October.