Hello everyone,   What is wrong here?   %macro HELLO; %global game; %let game = 0; run; %mend HELLO; %HELLO; data out.TV (KEEP=STUDYID DOMAIN VISITNUM VISIT VISITDY ARMCD ARM TVSTRL TVENRL); retain STUDYID DOMAIN VISITNUM; set TV; if &game. ne 0 then abort cancel; if &game. ne 0 then putlog'WARNING: A prior error has occurred or environment is not correctly initialised. WARNING: SDTME_TV_ALL_V01 terminated'; if &game. eq 0 then %do; /*And then the rest of the program follows*/ The task is to terminate the program without output if the global macro variable is not 0, and then write the warning in the log.   I hope you can help me. Iv'e never worked with global macro variable before, or tried to write something in the log.   Best regards, ... View more