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.

Size limitations of combining text and images

MMS media messaging

When sending text and pictures in the same message (MMS messaging), a message can contain up to 10 images and 1600 characters, as long as the entire message is under 5 MB in size. 1600 characters will take up 4.8 KB, which accounts for roughly 1% of the message size limit.

Twilio will automatically compress JPEG, PNG, or GIF files to reduce their size if they exceed certain thresholds, to help you fit more images on your message when needed. For details about media support, see Twilio Programmable SMS Supported File Types and Size Limits for MMS Media Messages.

WhatsApp media messaging

The 5 MB total message size limitation described above does not apply to WhatsApp media messaging on Twilio. WhatsApp media message behavior and limits are described in Sending and Receiving Media with WhatsApp Messaging on Twilio.

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