Because there are so many sellers inputting item listings, and marketplaces have certain requirements around identifiers, Cluster has also built a functionality to identify products through keywords. Customers can input a product with no GTIN, or even an invalid GTIN, but a 0.50 Cluster match score based on keywords. Cluster can then look for items across multiple marketplaces, and get all relevant listings with confidence of >0.75 that are assigned with GTIN. Cluster can then validate that GTIN against GS1 data, and eventually assign it with recommended GTIN if needed.