> ## Documentation Index
> Fetch the complete documentation index at: https://help.lobyco.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Registering at POS

> Customer check-in at the POS, in both directions: scanning a sticker and the POS scanning the app.

This guide helps understanding the integration from POS to Lobyco utilising the app registering at POS.

<Info>
  **Tip💡**: Before digging into any API calls related to App register at POS, make sure you've setup payment locations for your stores. [Go to 'Setting up payment locations' guide](/integration/pos-point-of-sale-integrations/setting-up-a-payment-location)
</Info>

When referring to the process of registering at POS, it's one of the two scenarios:

1. Scanning a QR-code sticker at the payment location
2. The reverse process, scanning QR-code or barcode embedded inside the Lobyco White label app.

To fully understand the registering(check-in) at POS API calls sequence, the following diagram can be studied.

## Mobile app check-in with POS scanning Barcode or QR-code from Mobile app (reverse-checkin)

<img src="https://mintcdn.com/lobyco-4c9fb3ad/wpdZgjvGMgh4Gbhy/images/b4d16c064da6d13e047e854f11a8bb3e3fd913f1.png?fit=max&auto=format&n=wpdZgjvGMgh4Gbhy&q=85&s=bc0d0645c79d2c148390e2d427da71ff" alt="" width="907" height="834" data-path="images/b4d16c064da6d13e047e854f11a8bb3e3fd913f1.png" />

### Endpoints

* [Register member at payment location - v2](/api-reference/payments/payment-coordinator/post-v2-checkin-paymentlocation)
* [Clear check-in](/api-reference/payments/payment-coordinator/post-v1-checkin-paymentlocation-clear)

## Mobile app check-in with scanning a QR code sticker at POS

This diagram contain both check-in and payment flows, payment part is optional and should be applied only if cashier pressed button on POS to pay with loyalty app.

<img src="https://mintcdn.com/lobyco-4c9fb3ad/wpdZgjvGMgh4Gbhy/images/41de1dd888f1c9dac59e620c73e864d9b29856ee.png?fit=max&auto=format&n=wpdZgjvGMgh4Gbhy&q=85&s=dd45a50a4ee8b7d298a28dc5369ecab1" alt="" width="907" height="1000" data-path="images/41de1dd888f1c9dac59e620c73e864d9b29856ee.png" />