In 2368, he claimed to be a member of the Ferengi Trade Mission when he boarded the USS Enterprise-D for the purpose of acquiring Kamala, an empathic metamorph. Lenor and Qol destroyed their own shuttle so that the Enterprise-D would agree to the transport them.
Once on board, Lenor attempted to bribe Ambassador Briam with 20,000 ingots of gold, but was rejected. When Briam threatened to inform Captain Picard of their true intentions, Lenor and Qol attempted to detain him and he was injured, but subsequently recovered. (TNG: "The Perfect Mate")