The SKU Mapping field, in ecomdash, is the unique system that we use to map the SKUs in ecomdash to the listings for that item on your storefronts
SKU Mapping can be set manually for an item by clicking Actions > View next to it in All Products, then click Manage Listings and go to the Channel Settings area.
SKU Mapping can also be updated in bulk through a file upload using the steps below:
1. Build an Inventory Import Format. Use the attributes SKU Number and Reference ID. Be sure to select a storefront from the storefront dropdown. The Reference ID will be set for your selected storefront.
2. Once the Import Format and File are complete, upload the file to update the Reference ID.