It doesn't run in your browser tab
Starting a clone queues a job that runs in the background, on its own, independent of the page you started it from. Closing the tab, closing your laptop, or losing wifi for a minute doesn't stop it. You can check its progress later from anywhere, on any device, by opening the app.
Where "where it left off" comes from
A clone works through your store in batches, by resource type, and records a checkpoint as each batch finishes. If the job is interrupted — Shopify's own rate limits pause it, the worker restarts, anything — it starts its next batch from the last checkpoint, not from the first product again. Nothing gets copied twice, and nothing gets skipped.
Why this matters for big catalogs
Shopify limits how fast any app can read and write a store. For a large catalog, a clone naturally takes longer than the time between two coffee breaks. Treating it as a resumable job, rather than one long unbreakable operation, means a slow network or a Shopify-side pause costs you minutes, not a restart from zero.
The run's page shows progress per resource type as it goes, so you always know where it is and what's left — not just a spinner.
Clone a big catalog without the worry.
Join the waitlist: 50% off your first yearRead next: How clone & sync works · Throttled, batched, resumable