For WooCommerce product variations (such as size or color), it's critical that each variation has a unique SKU.
By default, WooCommerce assigns no unique SKU to a product variation, therefore you must assign these SKUs manually to ensure proper fulfillment.
If you will be using product variations, leave the parent (Product) SKU blank and configure a SKU for the child (Variation) only. WooCommrce sends the SKU as Product SKU + Variation SKU, so if the parent SKU is blank, only the variation SKU is pulled.
- For example, if the Product SKU is "ABC" and the variation SKU is "DEF123", WooCommerce will send this as "ABCDEF123".
- If you want the SKU to appear as "DEF123" only, then leave the Product SKU blank, and set the variation SKU as "DEF123".
Assign unique SKUs to product variations
- In your Woo store, go to the Products page.
- Locate a product that has variations.
- Select the product.
- Scroll all the way to the bottom, and select the Variations tab.
- In this example Variations tab, you see three variations associated with the parent product. If you open/expand any variation, you see the SKU - by default, the same SKU as the parent.
- Assign a unique SKU to the variation. For example, if the parent product SKU is SHIRT, assign the variation SKU as RED, BLUE, LONGSLEEVED, etc.
- Repeat this process for all product variations.
If you would prefer not to assign unique SKUs to your product variations in WooCommerce, a custom rule can be created to automate unique assignment. To inquire about custom rules for product variation SKUs, email DropStream support at email@example.com.
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