Systems and methods to supplement search results returned to a buyer of parts

A machine-readable medium having no transitory signal and storing instructions that, when executed by at least one processor, cause the at least one processor to perform the actions comprising:

• providing, over a network at a network-based marketplace supporting person-to-person trading and compatibility services, a user interface that enables a seller to select additional applications or interfaces that are compatible with a product the seller intends to sell;
• based on receiving a selection of additional applications or interfaces that are compatible with the product or values associated with predetermined attributes and note information entered by the seller, identifying application identifiers for the product;
• retrieving from a data source, the application identifiers for the product;
• appending the note information received from the seller to each of the retrieved application identifiers;
• and
• storing the retrieved application identifiers, as appended with the note information, in a listing corresponding to the product.

A method comprising:

• providing, over a network at a network-based marketplace supporting person-to-person trading and compatibility services, a user interface that enables a seller to select additional applications or interfaces that are compatible with a product the seller intends to sell;
• based on receiving a selection of additional applications or interfaces that are compatible with the product or values associated with predetermined attributes and note information entered by the seller, identifying application identifiers for the product;
• retrieving from a data source, the application identifiers for the product;
• appending the note information received from the seller to each of the retrieved application identifiers;
• and
• storing the retrieved application identifiers, as appended with the note information, in a listing corresponding to the product.