When viewing 'Item sales' in Square Dashboard, all items are 'Uncategorized'. If we could add the Product type (or maybe another custom field), this would make much more meaningful reports about sales.
Create a product and go through the checkout process. From the Square Dashboard, go to Item sales and see that every product is Category is 'Uncategorized'.
Or, go to Category sales and see that all purchases are uncategorized.
Square's APIs allow to categorize products.
Documentation: https://developer.squareup.com/reference/square/objects/CatalogCategory
Forum Post: https://developer.squareup.com/forums/t/adding-categories-to-payments/1243
Not sure if these Categories need to be made within the Square Dashboard first, then retrieved inside of a Commerce site to be used. Or, if it allows to send a string that automatically categorizes the items.
If Categories need to be retrieved from Square Dashboard, then add a dropdown at the Product level to apply value.
If Categories need to be retrieved from Square Dashboard, a field will be needed to store the Categories.
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The forum post states the Orders API can be used to send category information. I don't think the Orders API is supported by this module (yet), although it might be part of the roadmap mentioned on the project page.