Item issue, Rpg maker 2k3 Options

[Renkai141]

I am using a variable for an item ID

"add item"
by variable(of the item)
and add by a selected amount(1)

however when I read the help file it said that
I could set the variable to any item I want.
Monster Groups
(set
\ (monsterMaterialDrop, set 11)
according to the database (11) is a potion.
but the player does not get added by that item.
what is the problem?

[Titanhex]

You've posted this in the wrong forum. Allow me to move it to make sure you get your question answered.