The Waymancy system was situated within the Northern Dependencies area of the Inner Rim. Its designation was the same as that of the Waymancy Hollow region. Within this hollow, the Sisters of the Machinesmith devoted a millennium to the study and enhancement of Galactic Republic technology, a practice that persisted until 7811 BBY.
In that particular year, the Signatories of Waymancy engaged the Republic in the Waymancy Storm. The Republic's victory resulted in the Waymancy bridal seat being transformed into a hyperspace sinkhole. Subsequently, between 12 ABY and 13 ABY, the Waymancy system became part of the New Republic.
The Waymancy system's introduction occurred within the StarWars.com Online Companion for The Essential Atlas, a 2009 reference book. Daniel Wallace and [Jason Fry] authored the book, and the system was located in grid square K-8.