An inventory management system for automatically generating a restocking order or prompting generation of a restocking order includes a storage space, a divider pivotable on the storage space between an upright position in which the divider separates the storage space into a front storage section and a rear storage section and a recumbent position that facilitates access to the rear storage section; and a motion detector module attached to the divider, the motion detector module including a sensor for detecting pivoting of the divider and a radio frequency transmitter in communication with the accelerometer and configured to emit radio frequency signals when the divider is rotated from the upright position to the recumbent position.