# 14107: SMS send rate limit exceeded

Log Type: APPLICATION

Log Level: ERROR

## Description

This error occurs when your application sends more than 30 outbound replies between the same two phone numbers within 30 seconds. This safeguard helps stop auto-reply loops and runaway messaging jobs. After the limit is exceeded, messages in that conversation are marked `failed` for 30 seconds.

### Possible causes

* Your application sends repeated replies between the same two phone numbers in a short time window.
* A `<Message>` `action` URL points to a TwiML document that sends another reply to the same conversation.
* A `<Redirect>` URL loops back to the same TwiML document and keeps generating replies.
* A webhook handler, background job, or REST API client is caught in a loop and keeps sending messages to the same recipient.
* An end user triggers automated replies rapidly enough to exceed 30 outbound replies in 30 seconds.

### Possible solutions

* Review your messaging workflow and confirm each inbound webhook triggers only the reply you intend to send.
* Check every `<Message>` `action` URL and `<Redirect>` target. Make sure they don't return TwiML that sends another reply to the same conversation unless that behavior is intentional.
* If you send messages with the REST API, add safeguards such as retry limits, loop detection, and duplicate request protection before sending another message to the same recipient.
* Test your webhook and TwiML flows end to end so you can confirm control doesn't return to the same reply path repeatedly.
* If you need this safeguard disabled for your account, contact Support only after you have protections in place to prevent costly auto-reply loops.

#### Additional resources

* [TwiML for Programmable Messaging](/docs/messaging/twiml)
* [TwiML Message](/docs/messaging/twiml/message)
* [Understanding Twilio Rate Limits and Message Queues](https://help.twilio.com/articles/115002943027)