# API Errors

| Result code | Result message                  | Remark |
| ----------- | ------------------------------- | ------ |
| 200         | Success                         |        |
| 500         | Internal Server Error           |        |
| 501         | Signature Verify Error          |        |
| 502         | Signature Verify Fail           |        |
| 503         | Invalid TempKey                 |        |
| 504         | Sign Transaction Error          |        |
| 505         | Contract Address Not Found      |        |
| 506         | Contract Address Type Not Match |        |
| 507         | Address Not Found               |        |
| 508         | Address invalid                 |        |
| 509         | Address information invalid     |        |
| 510         | Contract address invalid        |        |
| 511         | Contract name invalid           |        |
| 512         | Token description invalid       |        |
| 513         | Symbol invalid                  |        |
| 514         | Comment invalid                 |        |
| 515         | Transaction id invalid          |        |
| 516         | Date invalid                    |        |
| 517         | Meta data invalid               |        |
| 518         | Order invalid                   |        |
| 519         | Batch count not match           |        |
| 520         | Decimal point invalid           |        |