📌To help developers quickly locate problems when calling the WEEX API, the following table summarizes common error codes and corresponding solutions.
Please follow the prompts to troubleshoot and fix the issues to ensure the API requests function correctly.
| Question | Solution |
| Error code 40001：The request header "ACCESS_KEY" cannot be empty | The Access Key cannot be left blank. |
| Error code 40002：The request header "ACCESS_SIGN" cannot be empty | Signature cannot be left blank. |
| Error code 40003：The request header "ACCESS_TIMESTAMP" cannot be empty | The Timestamp field cannot be left blank. |
| Error code 40005：Invalid ACCESS_TIMESTAMP | Use the interface https://contract-openapi.weex.com/api/spot/v1/public/time (where the "data" part is your timestamp), and make sure it is 13 digits long. |
| Error code 40006：Invalid ACCESS_KEY | Access key = API key (for example, weex_f2df5c29c274be465d3f49be3e73d6c1), ensuring it must start with WEEX. |
| Error code 40007：Invalid Content_Type, please use the "application/json" format | Add "Content-Type": "application/json" to the request header. |
| Error code 40008：Request timestamp has expired | The validity period of the request is 30 seconds. |
| Error code 40009：API validation failed | Please create a new apikey. |
| Error code 429：Requesting too frequently | Request frequency exceeds the limit. |
| Error code 40011：The request header "ACCESS_PASSPHRASE" cannot be empty | The passphrase cannot be left blank. |
| Error code 40012：Incorrect API key/passphrase | API key or passphrase error |
| Error code 40013：User account is frozen | Contact @whitexixi_yc and fill out the work order to provide feedback. |
| Error code 40014：Insufficient permissions | Contact @whitexixi_yc and fill out the work order to provide feedback. |
| Error code 40015：System error | Contact @whitexixi_yc and fill out the work order to provide feedback. |
| Error code 40016：Users must bind a mobile phone or Google Authenticator | Bind the account using Google Authenticator |
| Error code 40018：Illegal IP request | You can try to create an API key that is not bound to an IP address. |
| Error code 40912：Single cancellation cannot exceed 50 | The number of cancellations cannot exceed 50. |
| Error code 40913：Either orderId or clientId must be provided | Please provide the orderID or clientID. |
| Error code 40102：Trading pair configuration does not exist | You can refer to https://contract-openapi.weex.com/api/spot/v1/public/products |
| Error code 40200：Server upgrade in progress, please try again later | Contact @whitexixi_yc and fill out the work order to provide feedback. |
| Error code 40305：The client_uid length should not exceed 40 characters and cannot contain special characters | The Client ID must not contain special characters and its length should be less than 40. |
| Error code 40409：Format error | Contact @whitexixi_yc and fill out the work order to provide feedback. |
| Error code 40704：Only query data for the last three months | Only the data from the last three months can be queried. |
| Error code 40707：Start time is earlier than end time | The start time must be earlier than the end time. |
| Error code 40724：Parameter is empty | The parameter cannot be left blank. |
| Error code 40725：Service returned an error | Contact @whitexixi_yc and fill out the work order to provide feedback. |
| Error code 43001：Order does not exist | Order does not exist. |
| Error code 43002：Order placement failed | Order placement failed |
| Error code 43004：There are no open orders to cancel | There are no cancelable orders. |
| Error code 43005：Exceeds maximum order size | Exceeding the maximum order quantity limit |
| Error code 43006：Order quantity is less than the minimum trading amount | You can refer to the minTradeAmount on https://contract-openapi.weex.com/api/spot/v1/public/products |
| Error code 43007：Order quantity exceeds the maximum trading amount | You can refer to the minTradeAmount on https://contract-openapi.weex.com/api/spot/v1/public/products |
| Error code 43008：Current order price cannot be less than 0 | The current order price cannot be less than 0. |
| Error code 43009：Current order price exceeds the limit of 0 | The current order price exceeds the limit by 0 |
| Error code 43010：Trade amount cannot be less than 0 | The transaction amount must not be less than 0. |
| Error code 43011：Current order price cannot be less than 0 | The current order price cannot be less than 0. |
| Error code 41101：Parameter check failed | Contact @whitexixi_yc and fill out the work order to provide feedback. |
| Error code 42002：BALANCE NOT ENOUGH | Insufficient balance |