Use this window to remove FIFO/LIFO data. When using FIFO or LIFO as the inventory valuation method, the system creates Inventory Part Cost FIFO data, Inventory Part FIFO Detail data, Inventory Part FIFO Issue data and Inventory Part FIFO Unissue data. These tables may grow rapidly and become very large for a customer who is using FIFO or LIFO as the inventory valuation method for many parts.
You can either perform a cleanup of FIFO/LIFO records directly, or schedule the task as a background job.