Put one or more accounts on a plan, or move them to a different one. Every location under each account moves with it: the previous plan is closed and the new one runs to the end of the month. Accounts already on the plan are skipped; when nothing changes the response is 422. This is the same action as Assign or change an account's plan on the Accounts page, for several accounts at once.

Prerequisites: the accounts' ids (account_ids) and a plan_id set up for your partner.

Authentication: Partner or Account token. plan_id must be one of your partner's plans, and each account must be inside your own account tree; otherwise 422.

Rate limit: none.