Last updated 13 November 2026.
Sync Watchdog is operated by Alexander Shumilov. Contact: shumilov.alex@gmail.com.
When a merchant installs the Shopify app, we store the shop domain and the session Shopify gives us so the app can open. For the check itself we read orders and refunds from the last 35 days: order number, date, currency, and totals. We do not ask Shopify for customer names, emails, or addresses.
When a merchant connects Xero, we store the organisation name and the access tokens, encrypted. We read invoices and credit notes in the same window: reference, number, date, currency, and total. A Xero document is compared only when its reference or number contains an order number that exists in the shop. Other documents in that organisation are ignored and not kept.
We do not keep a copy of every order. A check result keeps the order number, the kind of problem, and the two amounts.
The “tell me when it launches” form stores the email address, the role you pick, and the name of the sync you type, if you type one. We use that only to write when the app can be installed, and to see whether anyone wants it. We do not send a newsletter.
We do not sell this data. We do not use it to train an AI model. The app only reads. It does not change the Shopify store or the Xero organisation.
Shopify and Xero process the data their own APIs return, under their terms. This website and the app’s database are hosted on DigitalOcean. A launch notice is sent by email to the address you gave us.
The Xero connection and the Shopify session are deleted when the app is uninstalled. Shopify can also ask us to report or delete customer data and to delete a shop; the app answers those requests. A waitlist entry stays until you ask us to delete it.
Email shumilov.alex@gmail.com and we will send or delete what we hold for that address or shop.