Privacy policy — POS Cart Attributes Shopify app
Last updated: July 8, 2026
This Privacy Policy describes how POS Cart Attributes (“the App”, “we”, “us”) handles information when merchants install and use the App.
Overview
Section titled “Overview”POS Cart Attributes is an extension-only app. It runs inside Point of Sale and admin surfaces provided by your commerce platform. We do not operate an application backend and we do not receive, store, or process merchant or customer data on our own servers.
Information the App Uses
Section titled “Information the App Uses”When you use the App, the following information may be accessed or written directly within your store’s platform environment:
Shop configuration (read-only)
Section titled “Shop configuration (read-only)”- Shop metafield
pos_cart_attr.keys— the list of allowed cart-level attribute keys - Shop metafield
pos_cart_attr.item_keys— the list of allowed line-item attribute keys
These lists are managed by you in admin. The App reads them from the POS device using platform Direct API access so staff see the same key options on every register.
Cart and order data (read/write)
Section titled “Cart and order data (read/write)”- Cart-level attributes — key/value pairs you add through the smart-grid tile. Stored as cart properties and, after checkout, as order data in your store.
- Line-item attributes — key/value pairs you add per product from the line-item action. Stored as line-item properties and, after checkout, on the corresponding order line items in your store.
We do not copy this data off the platform. It remains in your store account.
Device-local preferences
Section titled “Device-local preferences”- Tile display name — an optional custom label for the smart-grid tile, saved on the POS device using the platform Storage API. This is not synced across devices unless you set the same name on each device manually.
Information We Do Not Collect
Section titled “Information We Do Not Collect”The App does not:
- Send cart, order, customer, or attribute data to us or to any third-party service operated by us
- Use advertising or behavioural tracking
- Collect payment card details (checkout is handled entirely by the platform)
- Require customers to create accounts with us
Static documentation site
Section titled “Static documentation site”The App listing references this documentation site at https://pos-cart-attributes.k2.digital/docs/. It is informational only. It does not use cookies, analytics, or forms that collect personal data.
Permissions
Section titled “Permissions”The App may request platform permissions required for installation and operation (as declared at install time). The POS extension reads shop metafields and writes cart or line-item properties only as described above.
Data retention
Section titled “Data retention”- Order and line-item attribute data is retained according to your store’s settings and the platform’s data policies.
- Device-local tile names persist on the POS device until cleared by staff or removed when the App is uninstalled from that device.
Your choices
Section titled “Your choices”You control which attribute keys are available, what values staff enter at checkout, and whether to install, enable, or uninstall the App.
Uninstalling the App stops further use of its extensions. Data already saved on completed orders remains in your store as part of your order history.
Third parties
Section titled “Third parties”The App relies on the commerce platform’s infrastructure to run. We do not share data with other third parties.
Children’s privacy
Section titled “Children’s privacy”The App is intended for business use by merchants and their staff. It is not directed at children.
Changes
Section titled “Changes”We may update this Privacy Policy from time to time. The “Last updated” date at the top will reflect the latest revision.
Contact
Section titled “Contact”For privacy questions, email tech@k2.digital or see Support.