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

# POS Settings

> Configure POS mode, apply order discounts, and check connection status from the Atom Commerce modal on your POS device.

All POS settings live on the **Settings** tab inside the Atom Commerce modal. Open it by tapping the Atom Commerce tile on your smart grid, then tapping **Settings**.

<img src="https://mintcdn.com/atomcommerce/gFb8RjMEeZ7dpMR-/images/pos-modal-settings.png?fit=max&auto=format&n=gFb8RjMEeZ7dpMR-&q=85&s=2db93cbd92cd24fa7c86b4a640232958" alt="Settings tab showing Apply Order Discounts button, POS Mode row with LITE mode and a Switch to PRO button, and a Network Status row showing Online with 142ms latency" width="358" height="561" data-path="images/pos-modal-settings.png" />

***

## PRO mode vs LITE mode

Atom Commerce POS has two discount modes. Which one you use depends on your Shopify POS subscription.

| Mode     | Requires             | How discounts apply                                          |
| -------- | -------------------- | ------------------------------------------------------------ |
| **PRO**  | Shopify POS Pro      | Applies discounts natively through Shopify's discount system |
| **LITE** | Any Shopify POS plan | Applies discounts as line-item price adjustments             |

**Which mode should I use?**

Use **PRO** if your store has Shopify POS Pro. PRO mode applies discounts through Shopify's native discount infrastructure, which means they appear correctly on receipts and in reports.

Use **LITE** if you're on a standard Shopify POS plan. LITE mode still applies discounts, but it does so by adjusting line-item prices directly. The discount is visible to the shopper and reflected in the cart total, but it shows differently in Shopify's reporting.

<Note>
  If you're not sure which plan you're on, check **Shopify Admin → Settings → Plan** or ask your Shopify account contact. Switching modes doesn't change your pricing — it only affects how Atom Commerce applies discounts.
</Note>

### Switching modes

The current mode is shown in the **POS Mode** row. To switch:

1. Tap **Switch to PRO** or **Switch to LITE** (whichever appears)
2. The mode saves immediately
3. Tap **Clear Atom Session** to refresh the connection before your next sale

***

## Apply Order Discounts

Tap **Apply Order Discounts** to manually trigger Atom Commerce to evaluate the current cart and apply any qualifying order-level discounts.

This is useful when:

* A discount didn't apply automatically
* You just switched POS modes and want to refresh
* A staff member modified the cart in a way that may have skipped discount evaluation

***

## Maintenance actions

### Clear Atom Session

Clears the current session and re-establishes the connection between your POS device and Atom Commerce. Use this if:

* Upsells aren't appearing after adding items
* You switched POS modes
* You're seeing stale data from a previous cart

***

## Network status

The **Network Status** row shows whether your POS device can reach Atom Commerce.

| Status                    | What it means                                                          |
| ------------------------- | ---------------------------------------------------------------------- |
| **Online** (green)        | Connected. Upsells and discounts are live.                             |
| **Slow Network** (orange) | Connected but response times are high. Upsells may be delayed.         |
| **Offline** (grey)        | No connection. Upsells are unavailable until connectivity is restored. |

The latency number (e.g. `142ms`) is the last measured round-trip time to the Atom Commerce API. Values below 500ms are normal. Above 1000ms, you may see the tile switch to the slow network state.

***

## Next steps

* [POS Upsells](/pos/upsells) — how staff use the upsells modal at the register
* [POS Setup](/pos/setup) — add the Atom Commerce tile to your smart grid