The error code is displayed in the inbox with a red exclamation mark next to the failed message, along with an explanation of the error code from Meta's documentation. However, the end user may not fully understand the explanation of the error code.

Therefore, the user would like us to provide a clear message and a suggestion when the message fails to be sent.

For example, when the message is sent out with error code 130472 - User's number is part of an experiment. Most SleekFlow users may not know how to resolve this error by checking this message.

It is suggested to add a system notice (of internal note) to inform the user that the above messages sent fail due to error code 130472 - User's number is part of an experiment. Please send out the utility template to reach out to the end-user, or wait until the conversation window opens.