This topic describes the error codes that may be returned when you call Real-Time Communication (RTC) Server API. This allows you to easily troubleshoot errors.
| Hexadecimal | Decimal | HTTP status code | Error name | Description |
| 0x2070101 | 34013441 | 400 | Request.NoTimestamp | The error code returned because the request does not contain the Timestamp parameter. |
| 0x2070102 | 34013442 | 400 | Request.NoSignature | The error code returned because the request does not contain the Signature parameter. |
| 0x2070103 | 34013443 | 400 | Request.NoRequestID | The error code returned because the request does not contain the RequestID parameter. |
| 0x2070104 | 34013444 | 400 | Request.NoBizID | The error code returned because the request does not contain the BizID parameter. |
| 0x2070105 | 34013445 | 400 | Request.NoAliUid | The error code returned because the request does not contain the AliUid parameter. |
| 0x2070106 | 34013446 | 400 | Request.NoAppID | The error code returned because the request does not contain the AppID parameter. |
| 0x2070107 | 34013447 | 400 | Request.NoDescription | The error code returned because the request does not contain the AppDescription parameter. |
| 0x2070108 | 34013448 | 400 | Request.NoAppType | The error code returned because the request does not contain the AppType parameter. |
| 0x2070109 | 34013449 | 400 | Request.NoServiceAreas | The error code returned because the request does not contain the ServiceAreas parameter. |
| 0x207010A | 34013450 | 400 | Request.NoBillType | The error code returned because the request does not contain the BillType parameter. |
| 0x207010B | 34013451 | 400 | Request.NoChannelID | The error code returned because the request does not contain the ChannelID parameter. |
| 0x207010C | 34013452 | 400 | Request.NoUserGroups | The error code returned because the request does not contain the UserGroups parameter. |
| 0x207010D | 34013453 | 400 | Request.NoUserID | The error code returned because the request does not contain the UserID parameter. |
| 0x207010E | 34013454 | 400 | Request.NoSessionID | The error code returned because the request does not contain the SessionID parameter. |
| 0x207010F | 34013455 | 400 | Request.NoNonce | The error code returned because the request does not contain the Nonce parameter. |
| 0x2070110 | 34013456 | 400 | Request.NoTerminalIDs | The error code returned because the request does not contain the TerminalIDs parameter. |
| 0x2070111 | 34013457 | 400 | Request.MismatchBizID | The error code returned because the value of the BizID parameter in the request is invalid. |
| 0x2070112 | 34013458 | 400 | Request.InvalidAppID | The error code returned because the value of the AppID parameter in the request is invalid. |
| 0x2070113 | 34013459 | 400 | Request.InvalidAppKey | The error code returned because the value of the AppKey parameter in the request is invalid. |
| 0x2070114 | 34013460 | 400 | Request.InvalidAppCallback | The error code returned because the value of the AppCallback parameter in the request is invalid. |
| 0x2070115 | 34013461 | 400 | Request.InvalidChannelID | The error code returned because the value of the ChannelID parameter in the request is invalid. |
| 0x2070116 | 34013462 | 400 | Request.InvalidChannelKey | The error code returned because the value of the ChannelKey parameter in the request is invalid. |
| 0x2070117 | 34013463 | 400 | Request.InvalidNonce | The error code returned because the value of the Nonce parameter in the request is invalid. |
| 0x2070118 | 34013464 | 400 | Request.InvalidTimestamp | The error code returned because the value of the Timestamp parameter in the request is invalid. |
| 0x2070119 | 34013465 | 400 | Request.IllegalTerminal | The error code returned because the value of the Terminal parameter in the request is invalid. |
| 0x207011A | 34013466 | 400 | Request.ChannelQueryExpire | The error code returned because the channel specified by the Channel parameter has expired. |
| 0x207011B | 34013467 | 400 | Request.ExistApp | The error code returned because the application specified by the App parameter already exists. |
| 0x207011C | 34013468 | 400 | Request.ExistAppCallback | The error code returned because the application callback specified by the AppCallback parameter already exists. |
| 0x207011D | 34013469 | 400 | Request.ExistChannel | The error code returned because the channel specified by the Channel parameter already exists. |
| 0x2070401 | 34014209 | 401 | Request.IllegalTimestamp | The error code returned because the value of the Timestamp field is invalid. |
| 0x2070402 | 34014210 | 401 | Request.IllegalSignature | The error code returned because the server failed to verify the value of the Signature parameter. |
| 0x2070403 | 34014211 | 401 | Request.IllegallAuth | The error code returned because the server failed to verify the value of the Auth parameter. |
| 0x2070404 | 34014212 | 401 | Request.IllegalBizID | The error code returned because the server failed to verify the value of the BizID parameter. |
| 0x2070405 | 34014213 | 401 | Request.IllegalAliUID | The error code returned because the server failed to verify the value of the AliUID parameter. |
| 0x2070406 | 34014214 | 401 | Request.IllegalBroadcast | The error code returned because the server failed to verify the value of the Broadcast parameter. |
| 0x2070407 | 34014215 | 401 | Request.IllegalUserGroups | The error code returned because the server failed to verify the value of the UserGroups parameter. |
| 0x2070801 | 34015233 | 404 | Service.NoSignaling | The error code returned because the signaling service is unavailable. |
| 0x2070802 | 34015234 | 404 | Service.NoApp | The error code returned because the application specified by the App parameter does not exist. |
| 0x2070803 | 34015235 | 404 | Service.NoAppCallback | The error code returned because the application callback specified by the AppCallback parameter does not exist. |
| 0x2070804 | 34015236 | 404 | Service.NoChannel | The error code returned because the channel specified by the Channel parameter does not exist. |
| 0x2070201 | 34013697 | 500 | Service.BuildSignature | The error code returned because the server failed to generate the signature. |
| 0x2070202 | 34013698 | 500 | Service.ParseHTTPBody | The error code returned because the server failed to parse the HTTP body. |
| 0x2070203 | 34013699 | 500 | Service.AppRDSOperate | The error code returned because the server failed to access the ApsaraDB RDS database for the application. |
| 0x2070204 | 34013700 | 500 | Service.AppCallbackRDSOperate | The error code returned because the server failed to access the ApsaraDB RDS database for the application callback. |
| 0x2070205 | 34013701 | 500 | Service.ChannelRDSOperate | The error code returned because the server failed to access the ApsaraDB RDS database for the channel. |
| 0x2070206 | 34013702 | 500 | Service.GenerateChannelKey | The error code returned because the server failed to generate the channel key. |
| 0x2070207 | 34013703 | 500 | Service.GenerateChannelToken | The error code returned because the server failed to generate the channel token. |
| 0x2070208 | 34013704 | 500 | Service.SignalingSendMessage | The error code returned because the server failed to send a message to the signaling service. |
| 0x2071001 | 34017281 | 200 | Service.Inactive | The error code returned because the specified service is unavailable. |
| 0x2071002 | 34017282 | 200 | Channel.NoExist | The error code returned because the specified channel does not exist. |
| 0x2071003 | 34017283 | 200 | Service.NoExist | The error code returned because the specified service does not exist. |
| 0x2071004 | 34017284 | 200 | App.Stop | The error code returned because the specified application is disabled. Enable the application based on its AppID in the RTC console. |
| 0x2071005 | 34017285 | 200 | App.ChargeOverDue | The error code returned because the application specified by the AppID parameter has overdue payments. Renew the application. |
| 0x2071006 | 34017286 | 200 | Channel.Exceeds | The error code returned because the number of channels exceeds the upper limit. Delete channels that are no longer used. |
| 0x2071007 | 34017287 | 200 | Request.ChannelQueryExpire | The error code returned because the channel specified by the Channel parameter has expired. |
| 0x2071008 | 34017288 | 200 | Request.ExistApp | The error code returned because the application specified by the App parameter already exists. |
| 0x2071009 | 34017289 | 200 | Request.ExistAppCallback | The error code returned because the application callback specified by the AppCallback parameter already exists. |
| 0x207100A | 34017290 | 200 | Request.ExistChannel | The error code returned because the channel specified by the Channel parameter already exists. |
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