Restricting selection of same material in unplanned/adhoc Inventory count.
We are using SAP IM 3.2. Our requirement is to restrict the user from selecting the same material in unplanned/adhoc Inventory count.
Ex: For first line item, user selected Mat1 and by mistake if user selects same material(Mat1) for any other line item in the same unplanned document we have to display a message to the user "Mat1 is already counted, please select other Material". How can we meet this requirement.
Can anyone help me out with the rule.