This endpoint allows you to update a delivery. All delivery fields can be updated while the job is in draft. You can continue updating certain fields after the job has been confirmed, as long as these updates do not affect the quote. This flexibility extends until the courier is at the delivery location. Note that fallback_handover_method, safe_place_location and leave_safe_instructions can only be set or changed while the job is in draft; sending them for a confirmed job returns a 422. For more info check the Updating a Delivery page in the documentation