I have a reqmt in Material Master, when we are creating Material and navigating to the sceond screen there we are giving Material Group.
So the Material Group we have maintained are old and new.
Old Material Groups will be having ~ symbol in front of Material group description
New Material Group will be normal in description.
Requirement is -
A user should receive an error message if the try to select a material group that has a ~ in the 1st pos. of the material description. For example, user should not be able to choose any of the following material groups.
Pls suggest me which exit or BADI do i need ot use and how(code snippet)