To add Square to your Unify Enterprise subscription, go to File -> Manage stores and add a new store
Step 1: Name your Square store and select Square from the dropdown
Step 2: Sign in to your Square account
Step 3: Allow permissions
Step 4: Select your location from the dropdown and Unify Enterprise will begin to download the data from the selected Square location.
Step 5: Add your location address information and click Save
Step 6: Connect to Accounting software
Note: downloading items and other data from Netsuite will take some time depending on how much data you have in your Netsuite account.
If you have more than one square location, repeat the steps above to add a new store and select one of your other locations in Step 4.