I´m getting a date(Name: start) over a prompt and i dont know, if symexist work on dates, because i have some problems...
%macro test;
%global Var;
%if %symexist(start) = 1 %then %do;
%let Var = startdate is DATE(%bquote('&start'));;
%end;
%else %if %symexist(start)= 0 %then %do;
%let Var= no startdate;
%end;
%mend;
Edit:
%if %symexist(start) = 1 and %sysevalf(%superq(start)=,boolean) = 0 %then %do;
&
%if %symexist(start) = 1 and %sysevalf(%superq(start)=,boolean) = 1 %then %do;
That solved it.
Your "that solved" implies that the prompt existed but for some reason there was no value assigned in some cases I believe.
Right. The title is wrong -> check if prompt is empty or not would be better.
So %sysevalf(%superq(start)=,boolean).
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