# CHECKOUT999: Checkout unexpected

## What this means[​](#what-this-means "What this means के लिए सीधा लिंक")

Checkout hit an unexpected problem.

Check the order in your store admin before charging the customer again. Export diagnostics and contact support if the problem repeats.

## What to do[​](#what-to-do "What to do के लिए सीधा लिंक")

Check the details below before trying again. WCPOS does not retry this by itself — retry when you are ready.

## Your data[​](#your-data "Your data के लिए सीधा लिंक")

The outcome could not be confirmed — verify before retrying. If this persists, export diagnostics and contact WCPOS support.

## Details[​](#details "Details के लिए सीधा लिंक")

* **Code:** `CHECKOUT999` (`CHECKOUT_UNEXPECTED`)
* **Severity:** error
* **Introduced in:** WCPOS 1.10.0