When you search for a SKU while building a shipping plan and nothing comes back, the SKU is usually inactive, missing a product ID, or set up as a kit. Work through the causes below in order.
Cause 1: The SKU Is Inactive
Filter your search to include inactive SKUs, then reactivate the SKU.
Cause 2: The SKU Is Missing a Product ID
Confirm the product has both a SKU and a product ID. For Shopify products, the product ID appears in the product's Shopify URL.
Cause 3: The SKU Is a Kit
A kit SKU cannot be added to a shipping plan. Add the individual component SKUs instead.
In the example below, the kit has one component: KBK02. When you create the shipping plan, add KBK02 rather than the kit SKU.
If the SKU is not a kit and the search still returns nothing, open a support ticket. LVK can import the product manually.