Who this applies to#
- Assign SKUs at the product or variant level needed for internal inventory and fulfilment work
What SKU requires#
- Keep each active SKU unique inside the merchant's own operating system
Shopify
Shopify provides a SKU field on product variants for internal tracking
What this does not require#
- A SKU does not have to be a globally standardized identifier issued by GS1
Common mistakes#
- Using SKU and UPC interchangeably
- Reusing one SKU for variants that need separate stock
SKU checklist#
- Choose a stable format
- Assign at the right variant level
- Keep it unique
- Do not encode facts that change often