Why if statement is not working in sas macro?

I wanna get back one character by calling this macro but there is an error:

%macro getcategory(date=);

%global category;

%if %year(date) < 2002 %then %do;
%let category = A;

%mend;

%getcategory(date=1999);

I tried with symput but not working.

>Solution :

It looks like you are trying to use the %year() function to determine the year of the date parameter that is passed to the getcategory macro. However, the %year() function is not part of the SAS language.

To get the year from a SAS date value, you can use the year() function, which is part of the SAS date and time functions. Here is an example of how you might use it:

%macro getcategory(date=);
  %global category;

  %let year = %sysfunc(year(date));
  %if &year < 2002 %then %do;
    %let category = A;
  %end;
%mend;

%getcategory(date=1999);

In this example, the %sysfunc() function is used to call the year() function within the macro. This is necessary because the year() function is a SAS function, not a macro language function.

Note that the year() function returns the year as a four-digit number, so you will need to compare it to the value 2002 rather than the value 2.

I hope this helps! Let me know if you have any other questions.