are there SKU numbers?

[RescoCCC]

You can use this mod to add a SKU number field:

http://www.numinix.com/numinix-product-fields

[FukienMan]

You can use this mod to add a SKU number field:

http://www.numinix.com/numinix-product-fields

From reading the Numinix website, this mod is for adding product fields to NUMINIX modules, not to my existing ZC admin. Correct me if I am wrong.

[RescoCCC]

From reading the Numinix website, this mod is for adding product fields to NUMINIX modules, not to my existing ZC admin. Correct me if I am wrong.

It adds whatever fields you choose to install to the product setup page in Zen Cart, and also adds controls to the other modules IF you have them installed.