SalonInteractive provides an e-commerce solution that enables your suppliers to ship direct to your customers. Inspire by STX integrates with their product catalog to bring the products into the software, sync updates and allows purchase orders be sent directly to their suppliers.
Sometimes the SalonInteractive Products aren't updated to be the correct SKU right away - this often happens with seasonal products.
If you are not using the SalonInteractive integration, you are welcome to use the Setup SalonInteractive page but please be aware that you cannot edit the product details and you may be limited to the SKUs & Sizes carried by SalonInteractive suppliers only.

For a scenario where the SKU is different on your product, you can go to Setup > Setup Products and enter additional SKUs.