[A] MSL function in MRP is used to consider minimum stock level in MRP report.



[B] For Ex: If you have a required quantity of "90" kg for an item and you have set "10" kg as the minimum stock level for that item in inventory master and current stock is "0", then to be ordered quantity will be "100" kg  (Required Qty + MSL Qty).



Keywords: 
MSL, MRP