MessageBird offers multiple tools to help you to quickly understand any unexpected behavior between the MMS API and your application.
If you run into issues with MMS delivery, the best place to start troubleshooting is in the Message Logs in your MessageBird dashboard.
Here you can find an overview of the sent and received messages for the last 30 days. You can export messages older than 30 days.
Select the eye symbol on the far right side of the logs to drill into each specific message for information such as Type, ID, Originator, Send Time, Message, and Summary.
You can filter the message logs by Status (e.g. filter by undelivered) using the Filter button on the top right.
If you received an error response and code from MessageBird that is not listed in the above Error Codes list, you can troubleshoot the error by exploring the general API Error Codes.
In case of an API error, the body of the response includes a json formatted response that tells you exactly what is wrong.