> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wavix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Idempotency violation

## Error description

You're trying to send more than one message with the same idempotency key.
Wavix supports idempotent requests only through the `X-Cio-Idempotency-Key` request header.

## How to fix it

Wait 12 hours before reusing the same idempotency key, or use a new key for your message.