If you have multiple Product ID's for the same item and you want to combine them into one Product ID, follow the steps below:
Find the Product ID's that you would like to merge:
Add the Amazon® ASIN to the selling section of the Product ID you are merging the FBA/FBM sku's to:
Using the Lookup feature, create Lookups to match each of the Product ID's with matching ASIN:
Optional: Using the Actions dropdown menu, deactivate one of the desired Product IDs in order to keep only one Product ID within Finale: