Nothing, unless you choose otherwise. Pausing only turns off future renewals; every delivery date the customer has already paid for stays open and will be produced and delivered, and the customer can still select meals for them. If you want to stop specific upcoming days, tick them under Select days you want to cancel in the pause modal: each ticked day is set to Canceled, any meals already selected on it are refunded, and you can compensate the customer with the Refund to Digital Wallet amount. Closed delivery dates (past cutoff) are not offered in the list.