What is CICS ISSUE CONFIRMATION command used for?

CICS ISSUE CONFIRMATION is used to send confirmation messages to users or systems, providing notification of operation completion, status updates, and transaction confirmations.

What types of confirmation messages can be sent?

Confirmation types include transaction confirmations (completion, processing, operation), data confirmations (saved, updated, deleted), user confirmations (notifications, actions), and system confirmations (status, resources, connections).

How do I handle errors with CICS ISSUE CONFIRMATION?

Always check the response code and implement appropriate error handling, including validation of confirmation requests, retry mechanisms for failed deliveries, and fallback procedures for communication errors.

What is the purpose of confirmation messaging?

Confirmation messaging enables user notification, status communication, operation feedback, audit trail maintenance, and system integration by providing clear confirmation of completed operations.

When should I use CICS ISSUE CONFIRMATION?

Use this command when you need to notify users of operation completion, provide status updates, maintain audit trails, or integrate with other systems through confirmation messaging.

CICS ISSUE CONFIRMATION - Confirmation Message Control

CICS ISSUE CONFIRMATION provides confirmation message capabilities for programs and transactions. It enables programs to send confirmation messages, manage confirmation requests, and handle confirmation messaging in CICS environments.

What is CICS ISSUE CONFIRMATION?

CICS ISSUE CONFIRMATION is a command that allows programs to send confirmation messages to users or other systems. It provides confirmation messaging capabilities, user notification, and confirmation management for CICS applications.

Command Syntax

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EXEC CICS ISSUE CONFIRMATION
    [MESSAGE(message-text)]
    [LENGTH(message-length)]
    [RESP(response-code)]
END-EXEC

Parameters

Optional Parameters

MESSAGE(message-text) - Confirmation message text
LENGTH(message-length) - Length of message text
RESP(response-code) - Response code variable

Confirmation Types

Transaction Confirmations

Confirmation of transaction completion

• TRANSACTION COMPLETE - Transaction completion confirmation
• PROCESSING COMPLETE - Processing completion confirmation
• OPERATION COMPLETE - Operation completion confirmation
• TASK COMPLETE - Task completion confirmation

Data Confirmations

Confirmation of data operations

• DATA SAVED - Data save confirmation
• DATA UPDATED - Data update confirmation
• DATA DELETED - Data deletion confirmation
• DATA PROCESSED - Data processing confirmation

User Confirmations

Confirmation messages to users

• USER NOTIFICATION - User notification confirmation
• ACTION CONFIRMED - Action confirmation
• REQUEST CONFIRMED - Request confirmation
• STATUS CONFIRMED - Status confirmation

System Confirmations

System-level confirmation messages

• SYSTEM STATUS - System status confirmation
• RESOURCE ALLOCATED - Resource allocation confirmation
• CONNECTION ESTABLISHED - Connection confirmation
• SERVICE AVAILABLE - Service availability confirmation

Programming Examples

Basic Confirmation Message

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. CONFIRM01.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  MESSAGE-TEXT    PIC X(50) VALUE 'Transaction completed successfully'.
       01  MESSAGE-LENGTH  PIC S9(8) COMP VALUE 50.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       
       PROCEDURE DIVISION.
           DISPLAY 'Sending confirmation message...'
           
           EXEC CICS ISSUE CONFIRMATION
               MESSAGE(MESSAGE-TEXT)
               LENGTH(MESSAGE-LENGTH)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               DISPLAY 'Confirmation message sent successfully'
               DISPLAY 'Message: ' MESSAGE-TEXT(1:MESSAGE-LENGTH)
           ELSE
               DISPLAY 'Failed to send confirmation message'
           END-IF
           
           EXEC CICS RETURN END-EXEC.

Advanced Confirmation Management

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. CONFIRM02.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  MESSAGE-TEXT    PIC X(100).
       01  MESSAGE-LENGTH  PIC S9(8) COMP.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       01  CONFIRMATION-TYPE PIC X(1).
       01  TRANSACTION-ID  PIC X(8) VALUE 'TXN001'.
       
       PROCEDURE DIVISION.
           PERFORM PROCESS-TRANSACTION
           PERFORM SEND-CONFIRMATION
           
           EXEC CICS RETURN END-EXEC.
       
       PROCESS-TRANSACTION.
           *> Add transaction processing logic here
           DISPLAY 'Processing transaction: ' TRANSACTION-ID
           MOVE 'C' TO CONFIRMATION-TYPE.
       
       SEND-CONFIRMATION.
           EVALUATE CONFIRMATION-TYPE
               WHEN 'C'
                   MOVE 'Transaction completed successfully' TO MESSAGE-TEXT
                   MOVE 35 TO MESSAGE-LENGTH
               WHEN 'E'
                   MOVE 'Transaction completed with errors' TO MESSAGE-TEXT
                   MOVE 36 TO MESSAGE-LENGTH
               WHEN 'W'
                   MOVE 'Transaction completed with warnings' TO MESSAGE-TEXT
                   MOVE 40 TO MESSAGE-LENGTH
               WHEN OTHER
                   MOVE 'Transaction status unknown' TO MESSAGE-TEXT
                   MOVE 25 TO MESSAGE-LENGTH
           END-EVALUATE
           
           EXEC CICS ISSUE CONFIRMATION
               MESSAGE(MESSAGE-TEXT)
               LENGTH(MESSAGE-LENGTH)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           IF RESPONSE-CODE = DFHRESP(NORMAL)
               DISPLAY 'Confirmation sent: ' MESSAGE-TEXT(1:MESSAGE-LENGTH)
           ELSE
               DISPLAY 'Failed to send confirmation'
           END-IF.

Error Handling with Confirmation

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       IDENTIFICATION DIVISION.
       PROGRAM-ID. CONFIRM03.
       DATA DIVISION.
       WORKING-STORAGE SECTION.
       01  MESSAGE-TEXT    PIC X(50) VALUE 'Operation completed'.
       01  MESSAGE-LENGTH  PIC S9(8) COMP VALUE 50.
       01  RESPONSE-CODE   PIC S9(8) COMP.
       01  RETRY-COUNT     PIC S9(2) COMP VALUE 0.
       01  MAX-RETRIES     PIC S9(2) COMP VALUE 3.
       
       PROCEDURE DIVISION.
           PERFORM SEND-CONFIRMATION-WITH-RETRY
           
           EXEC CICS RETURN END-EXEC.
       
       SEND-CONFIRMATION-WITH-RETRY.
           PERFORM SEND-CONFIRMATION
           
           IF RESPONSE-CODE NOT = DFHRESP(NORMAL)
               AND RETRY-COUNT < MAX-RETRIES
               ADD 1 TO RETRY-COUNT
               DISPLAY 'Retry ' RETRY-COUNT ' sending confirmation'
               PERFORM SEND-CONFIRMATION-WITH-RETRY
           END-IF.
       
       SEND-CONFIRMATION.
           EXEC CICS ISSUE CONFIRMATION
               MESSAGE(MESSAGE-TEXT)
               LENGTH(MESSAGE-LENGTH)
               RESP(RESPONSE-CODE)
           END-EXEC
           
           EVALUATE RESPONSE-CODE
               WHEN DFHRESP(NORMAL)
                   DISPLAY 'Confirmation sent successfully'
               WHEN DFHRESP(INVREQ)
                   DISPLAY 'Invalid confirmation request'
               WHEN DFHRESP(LENGERR)
                   DISPLAY 'Message length error'
               WHEN DFHRESP(COMMERR)
                   DISPLAY 'Communication error occurred'
               WHEN OTHER
                   DISPLAY 'Unexpected error occurred'
           END-EVALUATE.

Confirmation Management

Message Control

• Message Creation - Create confirmation messages
• Message Formatting - Format message content
• Message Validation - Validate message content
• Message Delivery - Deliver confirmation messages

User Communication

• User Notification - Notify users of completion
• Status Communication - Communicate status updates
• Feedback Provision - Provide user feedback
• Confirmation Tracking - Track confirmation delivery

System Integration

• System Notification - Notify other systems
• Event Logging - Log confirmation events
• Audit Trail - Maintain audit trail
• Monitoring - Monitor confirmation delivery

Error Recovery

• Error Detection - Detect confirmation errors
• Error Recovery - Recover from confirmation errors
• Retry Mechanisms - Implement retry logic
• Fallback Procedures - Use fallback procedures

Error Handling

Common Response Codes

DFHRESP(NORMAL) - Confirmation message sent successfully
DFHRESP(INVREQ) - Invalid confirmation request
DFHRESP(LENGERR) - Message length error
DFHRESP(COMMERR) - Communication error
DFHRESP(NOTAUTH) - Not authorized to send confirmation
DFHRESP(SYSTEMERR) - System error occurred

Performance Considerations

Message Efficiency

• Optimize message content - Use concise, clear messages
• Minimize message overhead - Reduce message processing overhead
• Use appropriate message types - Choose appropriate confirmation types
• Monitor message frequency - Track confirmation frequency

System Impact

• Monitor system impact - Track how confirmations affect the system
• Optimize confirmation handling - Ensure efficient confirmation processing
• Manage resource usage - Monitor resource consumption
• Track performance metrics - Monitor confirmation performance

Best Practices

Confirmation Message Best Practices

• Use clear and concise confirmation messages
• Provide meaningful confirmation content
• Implement proper error handling
• Ensure confirmation delivery
• Monitor confirmation success rates
• Use appropriate confirmation timing
• Maintain confirmation audit trails

Explain It Like I'm 5 Years Old

Think of CICS ISSUE CONFIRMATION like telling someone you finished your homework:

• Finished Work: "I finished my homework" - Operation complete
• Tell Someone: "Tell mom I'm done" - Send confirmation
• Clear Message: "Say it clearly so she understands" - Clear message
• Make Sure: "Make sure she heard you" - Confirm delivery
• All Done: "Now everyone knows you're finished" - Confirmation sent

Exercises

Exercise 1: Basic Confirmation Message

Create a program that sends a basic confirmation message after completing a task.

Exercise 2: Conditional Confirmations

Write a program that sends different confirmation messages based on operation results.

Exercise 3: Error Handling

Implement comprehensive error handling for confirmation message failures.

CICS ISSUE CONFIRMATION - Confirmation Message Control

What is CICS ISSUE CONFIRMATION?

Command Syntax

Parameters

Optional Parameters

Confirmation Types

Transaction Confirmations

Data Confirmations

User Confirmations

System Confirmations

Programming Examples

Basic Confirmation Message

Advanced Confirmation Management

Error Handling with Confirmation

Confirmation Management

Message Control

User Communication

System Integration

Error Recovery

Error Handling

Common Response Codes

Performance Considerations

Message Efficiency

System Impact

Best Practices

Confirmation Message Best Practices

Explain It Like I'm 5 Years Old

Exercises

Exercise 1: Basic Confirmation Message

Exercise 2: Conditional Confirmations

Exercise 3: Error Handling

Related Concepts

Message Handling

User Communication

Transaction Management

Event Logging

Error Handling

Related Pages