0 kg of stock available......

Dear friends,,

I am doing delivery w/o reference to sell scrap material. when I am saving sys. postes an error 0 kg material xxxx available.

but if in material master MRP views, in availability check field, presently the value is 02 (individual requirement), but if i change it to KP (no check), everything goes fine. material is available in MMBE..

Regards....