---
schema_version: "1"
id: 4d6f8a145f3c3d732ba942bc798411c48cd2a4348d56e7125541f941be784173
title: Transactional API Response Level Error Codes
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/transactional-send-response.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/transactional-send-response.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 9b5df64b63a55ae1821632ed90f9af7ce11deb6c9d4cac61ce4f810b988a7739
products:
  - Marketing Cloud Engagement APIs and Programmatic Languages
  - Marketing Cloud
---
# Transactional API Response Level Error Codes

A response level error code occurs when there’s a problem with syntax or other synchronous processing error, such as reusing a duplicate messageKey or malformed email address.

## Response-Level Error Codes

| Error Code | Error Message                                                               | Message-specific or definition (Resource) | Channel          |
| ---------- | --------------------------------------------------------------------------- | ----------------------------------------- | ---------------- |
| 10000      | MCMS_UTM_Validation                                                         | /definitions                              | email, sms, push |
| 10001      | MCMS_UTM_Validation_InvalidDataType                                         | /definitions                              | email, sms, push |
| 10002      | MCMS_UTM_Validation_MissingRequiredField                                    | /definitions                              | email, sms, push |
| 10003      | MCMS_UTM_Validation_IncorrectFormat                                         | /definitions                              | email, sms, push |
| 10005      | MCMS_UTM_Validation_InvalidValue                                            | /definitions                              | email, sms, push |
| 30000      | MCMS_UTM_Runtime                                                            | /definitions                              | email, sms, push |
| 30001      | MCMS_UTM_Runtime_InvalidOperation                                           | /definitions                              | email, sms, push |
| 30003      | MCMS_UTM_Runtime_ObjectNotFound                                             | /definitions                              | email, sms, push |
| 30004      | MCMS_UTM_Runtime_ObjectAlreadyExists                                        | /definitions                              | email, sms, push |
| 40000      | MCMS_UTM_Authentication                                                     | /definitions                              | email, sms, push |
| 40001      | MCMS_UTM_Authentication_NotAuthenticated                                    | /definitions                              | email, sms, push |
| 109001     | MCMS_UTM_ResponsesHasErrors                                                 | /messages                                 | email, sms, push |
| 109101     | MCMS_UTM_Validation_TooManySubscribers                                      | /messages                                 | email, sms, push |
| 109102     | MCMS_UTM_Validation_NoSubscribers                                           | /messages                                 | email, sms, push |
| 109103     | MCMS_UTM_Validation_NoValidSubscribers                                      | /messages                                 | email, sms, push |
| 109104     | MCMS_UTM_Validation_MissingRequiredField_messageKey                         | /messages                                 | email, sms, push |
| 109105     | MCMS_UTM_Validation_MissingRequiredField_subscriberKey                      | /messages                                 | email, sms, push |
| 109106     | MCMS_UTM_Validation_MissingRequiredField_to                                 | /messages                                 | email, sms, push |
| 109107     | MCMS_UTM_Validation_MissingRequiredField_definitionKey                      | /definitions                              | email, sms, push |
| 109108     | MCMS_UTM_Validation_InvalidValue_messageKey                                 | /messages                                 | email, sms, push |
| 109109     | MCMS_UTM_Validation_InvalidValue_subscriberKey                              | /messages                                 | email, sms, push |
| 109110     | MCMS_UTM_Validation_DuplicateMessageKey                                     | /messages                                 | email, sms, push |
| 109111     | MCMS_UTM_Validation_InvalidValue_definitionKey                              | /messages                                 | email, sms, push |
| 109112     | MCMS_UTM_Validation_InvalidValue_options                                    | /definitions                              | email, sms, push |
| 109113     | MCMS_UTM_Validation_InvalidValue_autoAddSubscriber                          | /definitions                              | email, sms       |
| 109114     | MCMS_UTM_Validation_InvalidValue_resubscribe                                | /definitions                              | email, sms       |
| 109115     | MCMS_UTM_Validation_InvalidValue_keyword                                    | /definitions                              | sms              |
| 109116     | MCMS_UTM_Validation_InvalidValue_resubscribe_true_without_keyword_specified | /definitions                              | sms              |
| 109120     | MCMS_UTM_Validation_MissingRequiredField_keyword                            | /definitions                              | sms              |
| 109121     | MCMS_UTM_Validation_InvalidValue_to                                         | /messages                                 | email, sms, push |
| 109122     | MCMS_UTM_Validation_UnknownFieldName                                        | /messages                                 | email, sms, push |
| 109123     | MCMS_UTM_Validation_InvalidValue_classification_IncorrectType               | /definitions                              | email            |
| 109124     | MCMS_UTM_Validation_email_does_not_pass_validation                          | /definitions                              | email            |
| 109125     | MCMS_UTM_Validation_InvalidValue_updateSubscriber                           | /definitions                              | email, sms       |

## See Also

- [Transactional Messaging Email API](/docs/marketing/marketing-cloud/references/mc_rest_transactional_messaging_email)
- [Transactional Messaging Push API](/docs/marketing/marketing-cloud/references/mc_rest_transactional_messaging_push)
- [Transactional Messaging OTT API](/docs/marketing/marketing-cloud/references/mc_rest_transactional_messaging_ott)
- [Transactional Messaging SMS API](/docs/marketing/marketing-cloud/references/mc_rest_transactional_messaging_sms)