Want to use Safety Stock

Hi All,

We maintained safety stock for Finished Goods.Let say my safely stock level is 10.& now in my stock only 10 Finished Goods item.when we are going to do PGI we are getting message "Only 0.000 PCS of material 1200001515 available" & "An item with no delivery quantity is not permitted. Item will be deleted".

We want to use sometime safety stock.

when we change the safety stock level,then we are able to do PGI.

is there any permanent other solution.so that next time when we want to use safety stock,we can use.

Regards

Pavan