IGZ0064S A recursive call to active program program-name in compilation unit compilation-unit was attempted.
Explanation
COBOL does not allow reinvocation of an internal program which has begun execution, but has not yet terminated. For example, if internal programs A and B are siblings of a containing program, and A calls B and B calls A, this message will be issued.
System action
The application was terminated.
Programmer response
Examine your program to eliminate calls to active internal programs.
Symbolic Feedback Code
IGZ020