When you complete a product mapping, you establish a link between your Amazon FBM listings and Katana items, ensuring orders are connected to the correct variant in Katana and that inventory pushes update the correct Amazon listing.
The Amazon FBM integration can not be activated until product mapping is complete.
Product linking
SKUs are used to match items between Katana and Amazon FBM. If your Katana SKUs are identical to your Amazon FBM seller SKUs (also called merchant SKUs), select Yes (SKUs are matching) and move on to the next step.
If they don't match, add an Amazon FBM SKU alias to each Katana variant in the SKU aliasing section of the FBM configuration. (The same flow is used for the Amazon FBA integration).
Add an alias directly on a variant, or bulk-upload aliases with a spreadsheet (the same file template as FBA aligning), where a channel column defines whether each row is an FBA or FBM alias
If you also use the Amazon FBA integration, your existing FBA aliases are shown read-only for context - helpful when the same physical product has separate FBA and FBM SKUs
After uploading, you can check the result by opening an item in the Item screen and looking at the External identifiers tab
Tip: If you sell the same product as both FBA and FBM under different Amazon SKUs, you can give one Katana product both an FBA and FBM alias. Both Amazon offers then point to a single Katana item.
Good to know about aliases:
SKU matching is case-sensitive
When both an alias and a variant code match, the alias takes precedence
The FBM alias is also the SKU Katana uses when pushing stock to Amazon and when matching incoming FBM order lines
Product import
To complete product mapping, click the Start the import button in the Import products section.
Katana fetches your merchant-fulfilled (FBM) listings from Amazon and matches each one to a Katana item - first by FBM SKU alias (if added), then directly by variant code.
If no match is found, a new Katana product is created:
The Amazon seller SKU becomes the variant code
The Amazon price is imported as the default sales price
Cost is left blank for you to set later
The product category defaults to "Uncategorized" if the Amazon category can't be mapped
Product images stay managed in Amazon Seller Central - they aren't imported
In the context of the integration, Katana serves as the source of truth for product information. The import will not overwrite any existing product information in Katana - only products that don't exist in Katana are created from Amazon.
While the import runs, a progress indicator shows how many listings have been processed. When it completes, you'll see a summary of how many products were matched, created, and errored:
Errored rows can be downloaded as a spreadsheet for review
After fixing the issues, re-run the import - only the previously errored rows are re-attempted
Once the integration sync is activated, the product mapping serves as the basis for pushing stock levels to the correct Amazon listings and for getting the correct items into Amazon FBM sales orders in Katana.
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