Early delivery can increase the storage, handling, and cash flow costs to the Postal Service, as well as cause backups and traffic problems at loading docks and staging problems in receiving areas. purchase/SCM teams who anticipate the possibility of early delivery should ensure that the contract addresses the topic and requires the approval of the contracting officer before early delivery is made. When the contracting officer accepts early deliveries, he or she must notify receiving sites of the changes in delivery schedule.