Aside from his arms-dealing enterprises, Wallanooga had extensive business interests in the Outer Rim slave trade, He was also the Hutt to see for those looking to hire top-quality assassins. He favored and most enjoyed working with the Anzati, finding their innate cruelty admirable and almost Hutt-like.
The Sennex pirates sold Aurra Sing to Wallanooga, who had hopes of turning the girl into his own Force-sensitive assassin. He apprenticed her to the Anzati not long after he bought her. Wallanooga was killed by Aurra Sing sometime before 36 BBY when he failed to meet a deal with her.