About avoiding constants in mailings enabled for transactional message

Transactional messages do not support using constant personalization fields, which are also referred to as constants.

If the messaging referenced in the transactional message request defines constants in the messaging configuration, the web service request fails. Perform the following checks before you enable a messaging for transactional message.
  • Review the messaging configuration to ensure that the messaging does not define constants.
  • Examine the document referenced in the messaging configuration to ensure that the document does not contain constant personalization fields.