If errors occur in CMIP services while processing a request or response, CMIP services sends a MIB.ServiceError message to the object that originated the request or response.

All of the functions have a return code that should be examined by the application program. A value of zero means that the function was successful. Other values alert the application program to incorrect parameters, resource shortages (for example, memory allocation errors), and other problems.

The return codes for each API function are listed under Return codes in the section for each function.

These return codes are used by VTAM® CMIP services and appear in the CMER VIT entry and in messages sent from VTAM CMIP services to the application programs. See z/OS Communications Server: SNA Diagnosis Vol 2, FFST Dumps and the VIT for information about the CMER VIT entry.

Table 1 shows which VIT entries are for each API function.