We call Completed Fulfillment interface,but we still got error as below. Please support on this issues. Thanks.
Fulfillment - Shopify Manage the fulfillment of an order’s line items. Create a fulfillment for each shipment, provide tracking information, and notify the customer that their items have shipped.
Body: {“complete”:“”}
Response: {“errors”:“An error occurred, please try again”}
Body: {}
Response: {“errors”:“An error occurred, please try again”}