New orders API validation for openDate and promisedDate values

On 2025-11-10, the orders API will reject any incoming order with promisedDate value more than two hours earlier than the openedDate value. This change is live in the Toast API sandbox environment.

The promisedDate value for an order sets the date and time to fulfill the order. You can set the promisedDate value to any date and time equal to or later than the openDate value, but you cannot fulfill the order before you create the order. If your order's promisedDate is more than two hours before the openedDate, an HTTP 400 error is returned.

For more information about configuring promisedDate and opendDate values, see Scheduling future orders.