**To modify a gateway endpoint** This example modifies gateway endpoint ``vpce-1a2b3c4d`` by associating route table ``rtb-aaa222bb`` with the endpoint, and resetting the policy document. Command:: aws ec2 modify-vpc-endpoint --vpc-endpoint-id vpce-1a2b3c4d --add-route-table-ids rtb-aaa222bb --reset-policy Output:: { "Return": true } **To modify an interface endpoint** This example modifies interface endpoint ``vpce-0fe5b17a0707d6fa5`` by adding subnet ``subnet-d6fcaa8d`` to the endpoint. Command:: aws ec2 modify-vpc-endpoint --vpc-endpoint-id vpce-0fe5b17a0707d6fa5 --add-subnet-id subnet-d6fcaa8d Output:: { "Return": true }