# PAYMENT401: Terminal pairing incomplete

## What this means[​](#what-this-means "Lien direct vers What this means")

The payment terminal did not finish pairing with WCPOS.

Retry pairing after checking the terminal settings, and include the trace ID when contacting the payment provider.

## What to do[​](#what-to-do "Lien direct vers What to do")

A settings change is needed before this will work. Retry after making the change above; retrying without it will fail the same way.

## Your data[​](#your-data "Lien direct vers Your data")

No order or product data is affected. If this persists, contact your payment provider.

## Details[​](#details "Lien direct vers Details")

* **Code:** `PAYMENT401` (`TERMINAL_PAIRING_INCOMPLETE`)
* **Severity:** error
* **Introduced in:** WCPOS 1.10.0