Datacom application batch program failing with SA03

Products

• Datacom/DB

Issue/Introduction

Application program failing with
 SYSTEM COMPLETION CODE=A03   
.
.
NO ACTIVE MODULE FOUND                                                      
NAME=UNKNOWN     
.
.
 ABEND=SA03 U0000 REASON=00000000  072  

Cause

System Abend explanation
A03
 
  Explanation:  A task tried to end normally by issuing a RETURN macro or by
  branching to the return address in register 14. The task was not ready to
  end processing because either:
 
  o   The task had attached one or more subtasks that had not ended.
 
  o   The task did not detach a subtask that it had previously attached with
      the event control block (ECB) option.
 
  System Action:  The system abends the task.

Resolution

This error is generally related to the URT has OPEN=USER and the application doesn't issue a CLOSE. Or, if OPEN=DB, the Cobol application (main pgm or subpgms) use a STOP RUN instead of a GOBACK.