# CHECKOUT301: SKU duplicate

## What this means[​](#what-this-means "Enlace directo a What this means")

Checkout cannot continue because a product SKU is duplicated or invalid.

Change or remove the named SKU, then retry with the preserved cart.

## What to do[​](#what-to-do "Enlace directo a What to do")

Correct the highlighted details, then try again. Retry after making the change above; retrying without it will fail the same way.

## Your data[​](#your-data "Enlace directo a Your data")

The order itself is safe and unchanged.

## Details[​](#details "Enlace directo a Details")

* **Code:** `CHECKOUT301` (`SKU_DUPLICATE`)
* **Severity:** error
* **Introduced in:** WCPOS 1.10.0