Hi.  I'm in the same situation - wanting to switch from ShopKeep to Square and my inventory is all labeled with ShopKeep bar codes.  Did you have success with the switch?  I can't find where to upload the bar code (UPC?).  The import template doesn't have a sopt for this.

Hey @Mitch_YC, welcome to the seller community!

Yes—you can import your bar codes with our bulk import tool. There is an SKU field that you can use to update your product's identifier. Does that help get you where you need to be with stock-keeping? For step-by-steps, have a look here: Upload Your Item Library. If anything else comes up, please don't hesitate to let us know.

Thanks @Tom. I didn’t see anything about specific formats to use for the code under SKU. Is there anything special to note here or should I simply use the code that’s shoKeep generated?

For Point of Sale, the SKU column will accept either an SKU or a UPC. You can enter in the ShopKeep-generated code to the SKU column in our bulk import template. Once you've uploaded your items, the code that is entered in the column will be associated with the product. 

You’re unable to track both an SKU and a UPC for the same item, but you can add multiple SKUs to a single item. If you add multiple SKUs to an item, your Items Sales Summary will reflect the bar code you scanned during checkout.

Hope this helps get you in the right direction. Please let me know if you have any further questions.