Call Execute

Data step call routine
call execute('%sales');
call execute('%sales('||month||')');
The following DATA step uses CALL EXECUTE to execute a macro only if the DATA step writes at least one observation to the temporary data set.

%macro overdue;
proc print data=late;
title "Overdue Accounts As of &sysdate";
run;
%mend overdue;

data late;
set sasuser.billed end=final;
if datedue<=today()-30 then
do;
n+1;
output;
end;
if final and n then call execute('%overdue');
run;