Privacy Policy — MT: Omnibus Price History

Last updated: 27 August 2026. Developer: Merchant Tools. Contact: support@merchanttools.eu.

What the app does

MT: Omnibus Price History records the selling price and compare-at price of a store's product variants over time, computes the lowest price of the last 30 days as required by EU Directive 2019/2161, and writes that value to a variant metafield so the theme can display it.

Data we store

• Store data: the store domain, an access token (encrypted at rest), the store currency and the app settings.
• Price data: variant identifiers, product and variant titles, SKUs, and a dated log of price changes, kept for the retention period of the plan (90 days to 2 years).
• Write log: a record of every metafield write sent to Shopify.

We do not collect or store customer personal data. The theme block adds no tracking and sets no cookies.

Permissions

read_products to read prices; write_products used only to write the merchant_tools.omnibus_* variant metafields. The app never modifies prices, discounts, orders or customers.

Where data is processed

Servers are hosted by Fly.io in Paris (France) and the database by Neon in Frankfurt (Germany), within the European Union.

Retention and deletion

• When the app is uninstalled, all data for that store is deleted immediately, and again on Shopify's shop/redact request 48 hours later.
• We honor customers/data_request and customers/redact; as we hold no customer data, these return an empty record.

Sharing

We do not sell or share data with third parties. Data is only processed by our hosting providers (Fly.io, Neon).

Not legal advice

The app helps merchants display price information. It does not constitute legal advice on the Omnibus Directive or its national transpositions.

Changes

We may update this policy; the date above indicates the latest version.