In this post, you’ll learn about the COBOL runtime Error Code 203 and the reason why you are receiving it
COBOL Error Code :
203
Reason for this Error in COBOL
CALL parameter not supplied (Fatal) -The item you are trying to access in the Linkage Section of the currently executing program has not been initialized. -Recode your program to ensure that it contains all of the necessary parameters, or check that it is a valid caller.