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Using one Square account with more than one Shopify store

3 min read · Updated October 2026

Some businesses run more than one Shopify store - a second brand, another country, or a test store next to the live one - but keep a single Square account. unSquared works with all of them, just not at the same time: Square keeps only one unSquared connection per Square account, and the newest one wins.

What happens when the same Square account is connected twice

  • On the store you just connected

    Everything works as normal. A yellow notice, "unSquared was disconnected from another Shopify store", tells you how many other stores were using this Square account.

  • On the store connected before

    Square ends its connection, and unSquared disconnects it straight away: pending scheduled migrations are cancelled, and a migration that was running is stopped and marked failed.

  • When someone opens the earlier store

    Its Connect to Square page shows "Your Square account is now connected to another Shopify store" and explains why.

  • Your data

    Nothing already migrated into either Shopify store is changed or removed. Nothing changes in Square either - unSquared only ever reads from it.

Moving two Shopify stores from one Square account

  1. 1
    Migrate the first store

    Connect Square on the first store and run every migration you need there. Let any scheduled migration finish.

  2. 2
    Connect the second store

    Open unSquared on the second store and click Connect to Square. The first store is disconnected at that moment.

  3. 3
    Migrate the second store

    Run its migrations. To go back to the first store later, connect Square there again - the second store is then disconnected in the same way.

unSquared warns you before you connect

If the Square account a store used last time is currently connected to another store, its Connect to Square page shows a warning before you click Connect. Connecting a different Square account never affects the other store.

Don't switch stores in the middle of a migration

Connecting the Square account on another store stops anything still running on the first one. Wait for it to finish, then connect the next store.

Seeing a disconnected banner?

How to tell the two Connect to Square banners apart, and how to reconnect.

Read the guide