POS Checkout - Custom Dropdown Field

We’d like to add a custom field to the POS checkout so that a sales associate can specify a “customer origin” to the order. We’re trying to learn more about our tasting room customers and from where they’re visiting.

Thanks in advance for any guidance!

Since you mention a dropdown field, do you want it to have pre-populated options (Sales Attribute) or be free-form (Source Code)?

I’ve just located the Sales Attribute, and I think that will work perfectly for us. We’re not currently using it for anything else.

The freeform textfield of Source Code won’t work as well for us in this case.

Thanks @EdFarmCollective