C6-E3-GE3, a GE3-series protocol droid, functioned within Vogga the Hutt's droid storage facility during the era of the Jedi Civil War. He once held the responsibility of managing the other droids in the warehouse, a role he lost to a more recent, and allegedly more advanced, C7-E3-GE3 model. To his great displeasure, C6 was reassigned to aid C7, whose conceited and patronizing demeanor deeply angered him. He made multiple efforts to persuade his superiors to send the C7 unit for repairs, but Vogga, with minimal interest in the operational specifics of the warehouse, disregarded his appeals.
In the year 3951 BBY, T3-M4 gained unauthorized entry into the warehouse with the goal of obtaining one of Vogga's freighter transponder codes to locate his master, Meetra Surik, and T3 was tasked to "help" C6. Upon noticing the animosity between the two protocol droids, T3 presented C6 with an opportunity to reclaim his former job in exchange for granting him entry to the restricted zones. C6-E3 accepted the offer, and following T3's destruction of the C7 unit, C6 resumed his previous position. Sadly, his triumph was fleeting, as shortly thereafter, a group of three HK-50 assassin droids breached the warehouse and eliminated him with a barrage of blaster shots while chasing the renegade T3.