Umme, a planet renowned for its galaxy-level hunting opportunities, was situated in the Outer Rim Territories. It was located along a hyperspace route connecting the planets Batuu and Yakorki. Many hunters journeyed to Umme, with most employing private safari guides who furnished mobile lodging, droid assistants, game tracking expertise, and field taxidermy services. Nevertheless, the planet itself offered its own guiding services, complete with heavy-duty blasters for big-game hunting.
In the year 19 BBY, Umme's details were present within the data records of the Separatist Alliance freighter named Larkrer, alongside other locations found on the route between Batuu and the planet Cermau. Jedi Knight Anakin Skywalker and Chiss Ascendancy Commander Mitth'raw'nuruodo scrutinized the freighter's databanks seeking the location of a Separatist base that the ship was assisting in supplying. Skywalker commented that the descriptions of Umme and other locations sounded as if they were taken directly from a travel brochure. Eloc Throno, a historian and author, featured the planet in his book called Traveler's Guide to Batuu, suggesting Umme as a viable destination reachable by a short flight from Batuu.
The first mention of Umme occurred in Thrawn: Alliances, a 2018 novel authored by Timothy Zahn.