> For the complete documentation index, see [llms.txt](https://faq.finerymarkets.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://faq.finerymarkets.com/api-reference/troubleshooting-errors/error-7.md).

# Error 7

Error 7 Invalid Timestamp may occur when sending a REST request or connecting a websocket. 

* Make sure your payload contains a `"timestamp"` filed.
* Make sure you use UTC time.
* Make sure it is in milliseconds.
* Make sure the are no delays between setting a timestamp and sending a request.
* Make sure your system clock is synchronised.