Return codes for the initialization and termination exits

Table 1 shows the return codes that the initialization and termination exits provide.

Table 1. Return codes for the ALLOCATE initialization and termination exits
Return code (decimal)	Description
0	Exit processing was successful. ALLOCATE command processing continues.
12	The exit requested termination. The exit router issues an error message to the user and the ALLOCATE command processor terminates processing with a return code of 12.
16	The exit requested termination. The ALLOCATE command processor issues a message and terminates processing with a return code of 12.

Note:

If an exit returns an undefined return code, the ALLOCATE command processor terminates with a return code of 12 and issues an error message to the user, with the exit's reason code included in the message.
When requesting that the exit reason code be used as the return code from ALLOCATE, you must insure that the reason code does not duplicate existing ALLOCATE return codes.