Goods Issue

Hi

In ECC 6.00 version,if we select goods issue category in MIGO it displays Order,Others,Material Document,Purchase order....

Suppose i am posting one GRIN means a material document number will generate. According to that material document number its possible to do issue posting?(i Want to issue all the items in GRIN document no change in quantity also)

Because i tried this. But it displays the following error.

"Selected material document does not correspond with action to be executed"

Kindly clarify me.

Shobana.V