# PAYMENT401: Terminal pairing incomplete

## What this means[​](#what-this-means "直接链接到 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 "直接链接到 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 "直接链接到 Your data")

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

## Details[​](#details "直接链接到 Details")

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