createFulfillmentReturn operation creates a fulfillment return for items that were fulfilled using the createFulfillmentOrder operation. For calls to createFulfillmentReturn, you must include ReturnReasonCode values returned by a previous call to the listReturnReasonCodes operation.{
"items": [
{
"sellerReturnItemId": "string",
"sellerFulfillmentOrderItemId": "string",
"amazonShipmentId": "string",
"returnReasonCode": "string",
"returnComment": "string"
}
]
}