IBM Mainframe Forum

... but it doesn't work. ...

telling it doesn't work will not help You in getting an answer
we need something more to start giving advice

again , why You do not want to use the MODEL command while editing the panel source

Your VER statement does not include the NB operand. Hence it will allow a blank value.

I believe that this should do it:

IF (&AUDFACA = &Z' & &AUDFACB = &Z & &AUDFACC = &Z)
VER(&AUDFACC,LIST,'A',MSG=AUDT109)

This assumes that msg AUDT109 says something like 'one of the fields must be filled in'. The VER( .. LIST,'A' will trigger as all 3 messages are null.
Personally I prefer &Z to '' in ISPF panel verification.

I agree with Blackthorn, the VER should inckude a NB, i.e.
VER(&AUDFACC,NB,LIST,'A',MSG=AUDT109)