Several Amazon stores, one isolated environment each, nothing bleeding across

From the device side there is no hard limit: each store runs in its own environment, and 8GB of RAM handles a dozen windows comfortably, with more available as you add windows. The real ceiling is Amazon policy - holding multiple stores requires a legitimate business reason and platform approval, with genuinely separate entities and payout accounts. A tool solves the device and network layers; it cannot grant you the right to open a store.

Verification checks registration documents, payout accounts, address proof and video calls - all identity, where a browser is no help at all. What it can do is keep your sign-in environment stable and consistent: a fixed exit IP in the registration country, timezone and language matching that IP, and no device or network hopping during the review. An environment that jumps around lengthens reviews, and that part is entirely in your control.

It stacks layers: a shared exit IP, identical browser and device fingerprints, shared cookies and local storage, near-identical listing templates and pricing behaviour, and - most decisively - payout accounts, credit cards, business licences and legal representatives. The first layers separate cleanly with independent environments and IPs. The identity layer only separates if the paperwork genuinely is separate.

Yes, and it is the hardest kind to explain away. One payout account, one credit card or one bank account across stores is direct identity-layer evidence that no fingerprint browser, proxy or virtual machine can hide - and should not try to. If you genuinely operate several stores, the entities, settlement accounts and addresses have to be independent; environment isolation only reduces device-layer false positives on top of that.

Strongly recommended, and preferably a residential IP in the registration country that the store stays on long term. Frequently changing IPs or hopping between countries triggers verification faster than sticking to one stable line. Datacenter IPs carry more risk for seller back-end logins and suit public data collection tasks that involve no sign-in.

Yes. Configuration is encrypted and synced to the cloud, so installing the client on a new machine and signing into the same team restores the environment list, fingerprint parameters and proxy bindings exactly. Local export and import also works. Whether Amazon asks you to verify again depends on its session policy, so make the first sign-in after a migration during your usual hours and on the same exit IP.