Message mapping - lower node condition for top node

Hello,

E1EDK03

     SEGMENT

     IDDAT

     DATUM

     UZEIT

I would like to have only the E1EDK03s, where IDDAT is 002. So I tried to do it this way on the E1EDK03 level:

Constant 002 and IDDAT --> equalS than E1EDK03-->E1EDK03. But somehow it doesn't work. I also attached a picture of my message mapping.

Would be nice if somebody could help me.