Can I Stop a Message

You can ERROR the message (sending it to the Error DB) or KILL the message (meaning it disappears from inside the engine).

Both can be done with either a Tcl proc or inside an Xlate.

If this is a condition you know can happen frequently and you just want to filter the message, current norm is to use Tcl and do it pre route.

The SUPPRESS Action in an Xlate KILLs the message.

I think your IF is wrong.

Try using an equal sign followed by a space for space (like this sans parentheses (= )).

However, if you want to SUPPRESS if PID-4 is equal to spaces then

 – the SUPRESS should be subordinate to the IF.

 – to be most efficient you should probably put all of the other activity under the else – like this:

IF PID-4 eq =

   SUPPRESS

ELSE

 COPY

  COPY

  COPY

  … etc.

Also is it all of PID-4 that can be spaces for you to SUPPRESS the message or is it just one component? Is it just one space or could there be more than one space (checking against (= ) only checks for a single space)? If it can be more than one space but you don’t know how many then you will need some tcl to check for all spaces. The same is true if it can be one or more spaces.

Space and blank are very different things in Cloverleaf.  If you want to check if the field is blank you can use:

IF 0(0).PD1(0).#4(0) eq @null

If you really are checking for a field with 1 space character in it, your code is much clearer if you copy 1 space character into a variable (like @space) and then use:

IF 0(0).PD1(0).#4(0) eq @space