A2P 10DLC Campaign Vetting Delays: We are experiencing delays while vetting 10DLC campaigns. Our third party is reviewing campaigns manually, and due to the high volume of requests, a queue has built up. Campaign reviews are expected to take longer. Twilio is working with the provider to help expedite this process. New details will be shared in our incident report as soon they become available.
Twilio short codes use the same API to send SMS and MMS messages as regular Twilio long code phone numbers. When sending messages, set the "From" number as your short code.
For more information about the Twilio API, you can see the documentation here.