If you purchase a single item using the product id in the sales list interface, the purchase may encounter error codes enum in Status. The error codes generated by the purchase may be described in the response code belowTo support switching between Chinese and English, you need to add a parameter named "language" with the value "en_US" in the request header. This will allow you to receive English information responses for purchase failure scenarios.response code:106505 user’s steam account can’t trade response code:140005 wrong trade url format response code:106509 user’s steam account’s inventory is private response code:106310 user’s steam’s steam trade url is invalid response code:106516 user’s steam open the steam family view response code:106517 user’s steam locked by steam response code:106006 user’s steam was vac by steam response code:70001 balance is not enough response code:1367 This Steam account has been temporarily restricted from making purchases due to repeated non-receipt or refusal of purchase orders in the past 12 hours. This restriction will be lifted after 'n' hours response code: 140024 The merchant order is currently being processed. Please wait for a callback or tocheck for updates after 1 minute. response code: 140014 The merchant order number already exists. response code: 1369 The Steam account was tagged for fraudulent activities and cannot make purchases. response code: 105001 Item sold or removed already. response code: 1708 You passed a wrong price parameter! response code: 1317 No items for sale met the specified criteria. response code: 1014452 The item has been unlisted by seller. response code: 103011 The Steam account is unable to trade. You can check the specific error reason in the "errorData" field. response code: 70001 Insufficient balance response code: 1454 The market price of the item exceeds the maximum purchase price. response code: 1403 The item price has changed. Please proceed with a new purchase. response code: 1207 The item has been sold or removed! response code: 100000 Server error! response code: 1363 Server error! Purchase failed response code: 201445 A purchase exception has left the payment status unknown. Please wait for a callback or to check for updates after 1 minute. response code: 1010324 This trade link is invalid and cannot be used. Please ask the buyer to update the link.