Summary of CICS commands for APPC mapped conversations

The CICS® application programming interface provides a set of commands for use in APPC mapped conversations.

Table 1. Summary of CICS commands used in mapped conversations
Use to ...	Sync levels	CICS command	More information
Acquire a session.	0,1,2	ALLOCATE	Allocating a session to the conversation
Initiate a conversation.	0,1,2	CONNECT PROCESS	Connecting the partner transaction
Access session-related information.	0,1,2	EXTRACT PROCESS	Back-end transaction initiation
Send data and control information to the conversation partner.	0,1,2	SEND	Sending data to the partner transaction
Receive data from the conversation partner.	0,1,2	RECEIVE	Receiving data from the partner transaction
Send and receive data on the conversation.	0,1,2	CONVERSE	The CONVERSE command
Transmit any deferred data or control indicators.	0,1,2	WAIT CONVID	Sending data to the partner transaction
Reply positively to SEND CONFIRM.	1,2	ISSUE CONFIRMATION	Receiving and replying to a confirmation request
Prepare a conversation partner for syncpointing.	2	ISSUE PREPARE	The ISSUE PREPARE command
Inform the conversation partner of a program-detected error.	0,1,2	ISSUE ERROR	Demanding INVITE from the partner transaction
Signal an unusual condition to the conversation partner, usually against the flow of data.	0,1,2	ISSUE SIGNAL	Requesting INVITE from the partner transaction
Inform the conversation partner that the conversation should be abandoned.	0,1,2	ISSUE ABEND	Emergency termination of a conversation
Free the session.	0,1,2	FREE	Ending the conversation
Inform all conversation partners of readiness to commit changes to recoverable resources.	2	SYNCPOINT	Syncpointing a distributed process
Inform conversation partners of the need to back out changes to recoverable resources.	2	SYNCPOINT ROLLBACK	The SYNCPOINT ROLLBACK command

For programming information about CICS commands, see CICS command summary.