Hi @Santt0sh
A warning in SAS is is something that causes the automatic variable SYSCC to be set to the value 4. It also gives a message in the SAS log, but the message is just a green text that explains the warning, it has nothing to do with job completion. You can - at your own peril - redirect the log and get rid of the message, but your job will still end with a return code 4.
In general, warnings in production jobs should not be accepted. There are special cases, e.g. when reading XML input using a map/XML filename, and content is longer than 32676 bytes, where a warning seems unavoidable, and in these cases the warning can be nullified by resetting SYSCC to 0, but then there is no reason to suppress the message.
Step with warning - gives message + return code:
data _null_;
b = "&y";
run;
%put &=syscc;
121 data _null_;
122 b = "&y";
WARNING: Apparent symbolic reference Y not resolved.
123 run;
NOTE: There were 1 observations read from the data set WORK.A.
NOTE: The data set WORK.B has 1 observations and 2 variables.
NOTE: DATA statement used (Total process time):
real time 0.02 seconds
cpu time 0.00 seconds
124 %put &=syscc;
SYSCC=4
Step with warning and redirected log - no message, but return code:
filename tmp dummy;
proc printto log=tmp;
run;
data _null_;
b = "&y";
run;
proc printto;
run;
%put &=syscc;
138 filename tmp dummy;
139 proc printto log=tmp;
140 run;
NOTE: PROCEDURE PRINTTO used (Total process time):
real time 0.00 seconds
cpu time 0.00 seconds
146 %put &=syscc;
SYSCC=4
Step with warning and reset of return code - gives message:
data _null_;
b = "&y";
run;
%put &=syscc;
%if &syscc=4 %then %do;
%let syscc = 0;
%end;
%put &=syscc;
148 data _null_;
149 b = "&y";
WARNING: Apparent symbolic reference Y not resolved.
150 run;
NOTE: DATA statement used (Total process time):
real time 0.00 seconds
cpu time 0.00 seconds
151 %put &=syscc;
SYSCC=4
152 %if &syscc=4 %then %do;
153 %let syscc = 0;
154 %end;
155 %put &=syscc;
SYSCC=0
