Postpone the processing or delivery of specific shipments. With this endpoint, you can specify which shipments you would like to defer and provide new shipment dates, streamlining the logistics workflow when shipments cannot proceed as planned due to issues, such as delays, scheduling conflicts, or customer requests.

Before deferring a shipment, bear in mind the following:

• The shipment can be deferred by a maximum of 28 days from the date of the request.
• The shipment can only be deferred before it has been manifested.
• The maximum allowable defer requests per call is 99.