Eren Stocktake privacy policy

Last updated: 17 September 2026

Eren Labs (erenlabs.net) makes Eren Stocktake, an app that runs physical inventory counts inside a Shopify store. Questions about this policy, and requests to export or delete your store's data, go to support@erenlabs.net.

What the app reads from your store

With your permission the app reads your products and variants (titles, SKUs, barcodes, pictures, cost, price, vendor, product type, tags and collections), your inventory quantities at each location, your locations, and which of the app's plans your store is on. It reads them to build the list of things to count, to work out what a count changed, and to show reports. The screens in your Shopify admin also read your store's currency to show amounts; that is not stored.

The app does not ask for, and cannot read, your orders, your customers or their addresses. It never sees payment details. Because it holds no customer data, a customer data request from Shopify finds nothing to return or delete.

What the app writes to your store

• Inventory quantities, only when someone presses Apply or Undo on a count, or fixes a quantity from Quick check. Every quantity it writes carries a reference to the count or check that caused it and appears in Shopify's own inventory history.
• If a counted item is not stocked at the count's location yet, applying the count adds the item to that location.
• If someone who may apply counts presses Track inventory on an item whose inventory is not tracked, the app turns tracking on for that item.

It changes nothing else: no products, collections, orders or customers.

What we store

The app runs on Cloudflare (Workers, Durable Objects, D1 and R2). For your store we keep:

• Your counts. The items in each count (title, SKU, barcode, picture link, cost and price), the quantity Shopify held and the quantity people entered, the time of each entry and the name the person typed, notes and reasons, the devices that joined (the name typed, when they joined and were last seen), a log of who did what, the stock values before and after each apply so it can be undone, and a record of each change sent to Shopify until Shopify confirms it. A CSV copy of a count is saved when counting closes and when it is applied.
• Report rows. A summary of each applied count, the difference written for each item with its cost, and for each item the date it was last counted.
• Quick check fixes. Who made each fix, the quantity they saw, the change and the reason.
• A copy of current stock. For the locations you open for counting: each item's on hand, incoming, cost and price, with its title, variant, SKU, barcode and picture link. It is read weekly and when someone presses Read stock now, and each reading replaces the one before.
• Your settings. Which locations are open for counting, count settings, the people who use the app (the staff id Shopify gives us, the name they chose to show, their role and locations), branch links (stored as a hash, with who made them), campaigns, how many counts were started and lines written each month, and your plan.
• The access token Shopify issued for your store, encrypted.

People who count

Someone counting joins from a link or QR code and types a name. No account, email address or phone number is collected, and their entries are attributed to the name they typed. The counting page keeps the count's item list, scans not yet sent, recent scans and the device's sign-in for that count in the phone's browser storage, so counting goes on without a signal; clearing the browser's data for the site removes them. Staff who open the app from your Shopify admin are identified by the staff id Shopify gives us and by the name they choose to show.

How long we keep it

• A count that has been applied or cancelled is deleted 90 days after it was started, with everything in it: entries, names, devices, the log, the undo values and its CSV copies. A count that is still open or waiting for review is kept until it is applied or cancelled, and then follows the same rule.
• Report rows and Quick check fixes are deleted 90 days after they were made. What your plan changes is only how far back the reports let you look inside that time.
• The copy of current stock, the date each item was last counted, and your settings are kept while the app is installed.
• Our host keeps operational logs for up to seven days: the addresses the app was asked for (which can include a counting link's code and a device's sign-in for a count), your store's domain, your plan and error codes.

When you uninstall

Uninstalling removes our access to your store at once. About 48 hours later Shopify asks us to delete your store's data, and at that point everything listed above is deleted, including the CSV copies. Reinstalling before then finds your data as you left it. The inventory changes the app wrote stay in Shopify's own inventory history, in your store.

Who else sees it

Nobody else. Cloudflare hosts the app and Shopify is the source of the data. The app has no analytics, advertising or tracking code and no session recording. Your data is not sold, rented or shared, and we do not use it to train models.

Security

Your store's access token is encrypted before it is stored. Every request from the app's screens in your admin is checked against Shopify's session token for the person using it. Counting links are random and can carry a PIN. A count's links are revoked from the count (Connect a device), branch links from Settings, and a device can be removed from a count; each stops at once.

Your rights

Write to support@erenlabs.net and we will export or delete your store's data. You can also export any count yourself from the app as CSV, or as Excel on a paid plan. If you are in the EU or the UK, the lawful basis for this processing is our contract with you as the merchant, and you may complain to your local data protection authority.

Changes

If this policy changes, the date at the top changes with it.