Legacy (slower) ways to add customers
These steps are no longer recommended because they're slow or require a second barcode scanner. To add customers to the POS cart faster and more reliably, please use the new "Add customer" POS UI extension.
There are two different routes to add customers to the POS cart. Each comes with some PROs and CONs.
Since the "Add customer" Smart Grid action is already built into Shopify POS and doesn't require loading the app, it's the quickest method. However, it requires a second barcode scanner. Also, it doesn't work with custom barcodes synchronised with the app.
The app's Smart Grid actions work with custom barcodes and auto-generated QR codes. The app's smart grid actions can scan with a mobile device's camera or a second barcode scanner. However, since the app is not natively built into Shopify POS, it loads slower, which may be very noticeable on older and less performant devices.
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