In this post, you’ll learn about the COBOL runtime Error Code 220 and the reason why you are receiving it
COBOL Error Code :
220
Reason for this Error in COBOL
Attempt to execute more than one SORT or MERGE simultaneously (Fatal) -You have coded your program in such a way that it is trying to execute more than one SORT or MERGE operation at the same time. For example, you might have coded a SORT statement in the input or output procedure of another SORT statement, an operation that is specifically prohibited under the rules of ANSI COBOL. -You should recode your program to ensure that it does not execute more than one SORT or MERGE at any one time.