The messages have the format:

1002nnnn

where	1002	is the message class, and
	nnnn	is the message number in the range 0000 - 9999.

Error messages in class 1002 are reserved for customer use. The messages are given by customer RPC server implementations. See for example

• RPC-RETCODE in the RPC Server for CICS documentation

• Returning Application Errors in the RPC Server for Batch documentation

• Returning Application Errors in the RPC Server for IMS documentation