CICS Supplied Transactions

The CICS system supplies some predefined transactions to complete special-purpose tasks. These transactions are created with the CICS system installation and don't require any additional definition.

These transactions are helpful to developers and operators in application development. Based on their usage, system-supplied transactions are categorized into two types -

Transactions triggered by the CICS region that do not require a user action.
Transactions require a user action to trigger and used in application development.

Below we will discuss about the some of the system supplied transaction (require user action) that are useful for application development.

Transaction	Name	Description
CEBR	Temporary storage browse	Browses temporary storage queues and to delete them. CEBR is used to transfer a transient data queue to temporary storage to look at its contents and to re-create the transient data queue when finished.
CECI	Command-level interpreter	Provides an interface to test and execute CICS commands interactively, aiding in application development and debugging.
CEDA	Resource Definition Online (RDO)	Allows defining, modifying, and managing CICS resources dynamically while the system is running, making it easier to configure resources without system restarts.
CEDF	Execution Diagnostic Facility	Offers a debugging tool that allows step-by-step execution of application programs, helping developers identify and resolve issues during program execution.
CEMT	Master Terminal Transaction	Invokes all the master terminal functions. The master terminal program provides dynamic user control of the CICS system. Using CEMT, an operator can inquire about and change the values of parameters used by CICS, alter the status of the system resources, terminate tasks, and shut down the CICS system.
CEMN	CICS monitoring facility	Inquire on the settings for the CICS monitoring facility and to change some of the settings without needing to restart CICS.
CESN	sign on	Sign on the user to CICS region by using a password as authorization. CESN does not support password phrases.
CESF	sign off	Sign off the user from the CICS system.
CLDM	CICS load module map	Transaction CLDM is used to generate a CICS load module map.