Im not activate Batchmanagement at the time of material master creation. i did some material movements like 101,201 for this material. Right now i want to active batch management. but its not allowing to Make tick mark in purchasing view. Its showing error Stock exists plant 2000 storage location 1500 . but there is no stock for thismaterial in unrestricted,quality,blocked,restricted, returns, Stock is nill stock. but why its not allowed to active batch management..