Reference: ResultCode
| Code | Name | Description |
|---|---|---|
| 0 | OK | Success |
| 100 | Authentication_InvalidSignature | Invalid signature |
| 101 | Authentication_InvalidNow | NowUtc differs from the server by more than 20 min |
| 102 | Authentication_InvalidProject | No access to the ProjectID |
| 200 | Business_BadRequest | Invalid parameters |
| 201 | Business_InvalidMSISDN | Invalid MSISDN |
| 202 | Business_InvalidClientIP | Invalid ClientIP |
| 203 | Business_CustomerNotSupported | Operator not supported |
| 204 | Business_CustomerInBlackList | Subscriber is blacklisted |
| 205 | Business_SuspicionOfFraud | Suspected fraud |
| 206 | Business_InvoiceAlreadyExists | An open invoice already exists |
| 207 | Business_InvoiceNotFound | Invoice not found |
| 208 | Business_InvoiceIsClosed | Invoice is closed |
| 209 | Business_InvoiceInBilling | Invoice is being billed |
| 210 | Business_InvoiceWaitContent | Waiting for the content SMS |
| 220 | Business_InvoiceNotAuthorized | Invalid authorization PIN |
| 221 | Business_InvoiceAlreadyAuthorized | Already authorized |
| 222 | Business_InvoiceAuthorizationAttemptsExceeded | Attempt limit exceeded |
| 223 | Business_InvoiceAlreadyExpired | Authorization period expired |
| 224 | Business_InvalidCustomerPrice | Invalid CustomerPrice |
| 225 | Business_InvoiceIsNotPaid | Invoice is not paid |
| 228 | Business_InvalidProductItems | Invalid data in the ProductInfo/Items block |
| 230 | Business_CustomerContractAlreadyExists | Contract already exists |
| 231 | Business_CreateCustomerContractDenied | Contract creation not permitted |
| 232 | Business_CustomerContractNotFound | Contract not found |
| 240 | Business_CustomerContractNotAuthorized | Contract not authorized |
| 241 | Business_CustomerContractAlreadyAuthorized | Contract already authorized |
| 242 | Business_CustomerContractAuthorizationLimitExceeded | Attempt limit exceeded |
| 243 | Business_CustomerContractAlreadyExpired | Contract authorization period expired |
| 500 | Fatal_UnexpectedException | Unexpected error |
| 501 | Fatal_ServiceUnavailable | System unavailable |