A2P 10DLC Campaign Vetting Delays: Twilio cannot approve 10DLC Campaigns ourselves, and must rely on third parties who control our connections to carriers to sign off. These external processes are creating several week delays for our customers. We continue to escalate these issues and are working to reduce delays wherever possible. Further details will be shared in the Campaign Vetting Changes article as they become available.

What is an Application SID?

An application SID is the unique identification for a TwiML App; a collection of urls and configuration options. Inside a TwiML App, you can specify URLs for handling your Twilio Programmable Voice, Fax, and Messaging communications, as well as URLs for status callbacks and fallbacks. TwiML Apps are required for using Twilio Client in-browser calling.

Using TwiML Apps instead of individual URLs can also make managing multiple phone numbers easier. Users can simply update URL(s) in a TwiML App, rather than having to update the configuration for each of your phone numbers.

Users can create and manage TwiML Apps from the voice and SMS sections of Twilio Console:

For help managing TwiML apps via the REST API, see REST API: Applications (Twilio Docs).

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