US Patent 9619831 Determining item recommendations from merchant data

A service provider may receive transaction information from a plurality of merchant devices for a plurality of point of sale (POS) transactions conducted between buyers and merchants. The service provider associates the transaction information with respective buyer profiles. The service provider may subsequently receive an indication of a first item selected by a particular buyer for a current POS transaction being conducted with a particular merchant. The service provider may determine a particular buyer profile to associate with the current transaction. Based at least in part on the particular buyer profile or the other buyer profiles, the service provider may determine a second item that has been purchased frequently together with the first item. The service provider sends a communication to the particular merchant to indicate that the particular merchant may wish to offer the second item to the particular buyer for inclusion in the current transaction.