Below is a list of error codes that may be encountered when using the Twilio Mobile Identity API and services.
| Error Code | Error Description | Comments | Recommended Action |
|---|---|---|---|
| -10 | Phone Id Failed. | Twilio detected a generic error and Silent Network Auth failed. | Failover to another authentication method. |
| -11 | Phone Id Failed. | Twilio detected an invalid condition and Silent Network Auth failed. | Failover to another authentication method. |
| -17 | Phone Id Failed. | Twilio detected an error in the Silent Network Auth flow and Silent Network Auth failed. | Failover to another authentication method. |
| -20 | Phone Id Failed. | Twilio detected an error in the EVURL and Silent Network Auth failed. | Failover to another authentication method. |
| -30 | Unsupported Carrier. | The identified carrier is unsupported for Silent Network Auth. | Silent Network Auth failed. Failover to another authentication method. |
| -31 | Unsupported Carrier or Potential Wifi. | Twilio is unable to identify the carrier from the detected IP. | Silent Network Auth failed. Failover to another authentication method. |
| -32 | Potential Dual Sim. | Twilio has detected that the transaction may be from a dual sim device where the carrier identified via IP does not match the carrier identified via the phone number. | Silent Network Auth failed. Failover to another authentication method. |
| -33 | No header. | The carrier did not insert the header during the Silent Network Auth flow and Twilio cannot verify the number. | Silent Network Auth failed. Failover to another authentication method. |
| -34 | Carrier System Error. | There was an error on the carrier system during the Silent Network Auth flow. | Silent Network Auth failed. Failover to another authentication method. |
| -40 | Carrier Identified Invalid phone number. | Carrier indicated that the number is invalid. | Silent Network Auth failed. Do not failover to another authentication method. |
| -5000 | Access not allowed. | Access not allowed for the requested API. | Integration Issue. Contact Twilio Support for help. |
| -5001 | Authentication failed. | Customer authentication failed. Check your credentials. | Integration Issue. Contact Twilio Support for help. |
| -5002 | Unsupported version. | Unsupported version used for the API request. | Integration Issue. Contact Twilio Support for help. |
| -5003 | Retry with missing parameter. | A required parameter is missing from the API request. | Integration Issue. Contact Twilio Support for help. |
| -5004 | An invalid parameter was passed. | An invalid parameter was passed in the API request. | Integration Issue. Contact Twilio Support for help. |
| -5005 | An internal service error has occurred. | An internal service error has occurred. | Retry. If issue persists, contact Twilio Support. |
| -5006 | Retry with end-user identifier. | An end-user identifier such as the mobile number, authentication key or association key is missing from the API request. | Integration Issue. Contact Twilio Support for help. |
| -5007 | Silent Network Auth failed. | Silent Network Auth failed because device was not on carrier network or could not be identified for other reasons. | Complete Silent Network Auth through SMS or OTP. |
| -5009 | This phone number is not whitelisted. | Whitelisting is enabled and the phone number is not whitelisted. | Contact Twilio Support to whitelist number. |
| -5010 | Missing or Incorrect Submerchant Id. | A valid sub-merchant id is required for reseller merchants. | Integration Issue. Contact Twilio Support for help. |
| -5013 | Exceeded time to perform end-user identification. | The authentication key has expired before end-user identification could be completed. | Do not retry. Terminate transaction and exit. |
| -5014 | Silent Network Auth failed. | The phone number could not be identified. | Do not retry. Terminate transaction and exit. |
| -5016 | Silent Network Auth not complete. | The Silent Network Auth process has not completed yet. | Please retry the transaction as the Silent Network Auth process has not completed yet. |
| -5017 | Retry with passing consent in the input. | User consent is needed to make this API call in the current configuration. | Integration Issue. Contact Twilio Support for help. |
| -5018 | Please retry with both consentId and consentTimeStamp | Either consent id or consent timestamp was missing from the API request. | Integration Issue. Contact Twilio Support for help. |
| -5020 | Data is not available for this user. | Data is not available for this user from any of the configured data sources. | Do not retry. Terminate transaction and exit. |
| -5022 | Invalid merchant. | The merchant cannot be recognized. | Integration Issue. Contact Twilio Support for help. |
| -5023 | An invalid OTP was provided, please retry. | OTP didn't match the one that was sent to the mobile phone. | Ask consumer to retry. |
| -5029 | Data access not allowed. | The merchant is not configured for this API or for the Attribute Groups being requested. | Integration Issue. Contact Twilio Support for help. |
| -5030 | Data access not allowed. | Service providers are not configured for this merchant. | Integration Issue. Contact Twilio Support for help. |
| -5033 | Consumer identifier is invalid. | The end-user identifier such as the mobile number, authentication key or association key is invalid. | Do not retry. Terminate transaction and exit. |
| -5035 | This Authentication Key has expired. | The authentication key has expired and cannot be used anymore. | Do not retry. Terminate transaction and exit. |
| -5037 | Service provider error occurred. Please retry. | An error occurred while communicating with a service provider. | Retry. If error persists, Contact Twilio Support. |
| -5046 | No value was passed for consumerMdn and carrier. | No value was passed for consumerMdn and carrier. | Please retry by passing both the values. |
| -5049 | No value was passed for consumerMdn or carrier. | No value was passed for consumerMdn or carrier. | Please retry by passing either of the values. |
| -5050 | Data access not allowed. | Data access not allowed. | Integration Issue. Contact Twilio Support for help. |
| -5053 | Please retry with a valid MDN | Please retry with a valid MDN. | Retry. If error persists, Contact Twilio Support. |
| -5054 | Please retry with valid Consent | Input consent parameters are not valid. | Retry. If error persists, Contact Twilio Support. |
| -5055 | Consent is no longer active. | Consent is no longer active. | Please obtain new consent from the user and retry. |
| -5056 | Please retry with valid consent. | Consent is no longer active. | Please obtain new consent from the user and retry. |
| -5057 | Carrier not supported. | Twilio has not integrated with the carrier and there is no access to other authoritative data sources for the MDN. | Do not retry. Terminate transaction and exit. |
| -5061 | Insufficient information to determine response. | Twilio did not obtain sufficient information from mobile carrier to determine a response. | Do not retry. Terminate transaction and exit. |
| -5062 | Unable to identify carrier nxx. | Twilio could not identify the carrier associated with the phone number. xx are two digits used for internal tracking. | Do not retry. Terminate transaction and exit. |
Please reach out to Twilio Support for any instances of errors above where help is required. You can contact Twilio Support through the Console or Help Center.