There was an issue where SMS Data Destinations were failing which has since been resolved. Data previously submitted was processed on our servers and the SMS Data Destinations will be re-executed automatically.
Failures were similar to the following where <SMS_destination> is the name of your SMS Data Destination:
Error, Execution Failure: Processor '<SMS_destination>' failed to execute: System Error: There was an error that caused your request to not be completed properly.
For further information, please contact firstname.lastname@example.org.