How To Fix 00453 - Conversation not initialized (CMINIT/CMACCP called?)

SAP Error Message - Details

• Message type: E = Error

• Message class: 00 -

• Message number: 453

• Message text: Conversation not initialized (CMINIT/CMACCP called?)

What causes this issue?

Your CPIC communication does not start with CMINIT or CMACCP.

System Response

The CPIC function is terminated.

How to fix this error?

Correct the CPIC program.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 00453 - Conversation not initialized (CMINIT/CMACCP called?) ?

  The SAP error message "00453 Conversation not initialized (CMINIT/CMACCP called?)" typically indicates an issue with the communication setup between the SAP system and an external system or service. This error can occur in various scenarios, such as when trying to establish a connection to a remote system or when using certain SAP functions that require a communication session.
  Causes:
  
  Uninitialized Communication: The error suggests that a communication session has not been properly initialized before attempting to use it.
  Configuration Issues: There may be misconfigurations in the RFC (Remote Function Call) settings or in the communication parameters.
  Network Issues: Problems with the network connection between the SAP system and the external system can lead to this error.
  Authorization Issues: The user or system may not have the necessary authorizations to establish a communication session.
  System Errors: There could be underlying issues with the SAP system itself, such as memory problems or other system errors.
  
  Solutions:
  
  Check Communication Initialization: Ensure that the communication session is properly initialized before making any calls. This may involve checking the code or configuration that sets up the communication.
  Review RFC Configuration: Verify the RFC destination settings in transaction SM59. Ensure that the destination is correctly configured and that the connection test is successful.
  Network Connectivity: Check the network connection between the SAP system and the external system. Ensure that firewalls or network policies are not blocking the communication.
  User Authorizations: Ensure that the user or system account being used has the necessary authorizations to perform the communication tasks.
  System Logs: Check the system logs (transaction SM21) for any related errors or warnings that might provide more context about the issue.
  Restart Services: If the issue persists, consider restarting the relevant services or the SAP system itself to clear any temporary issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review the SAP documentation related to the specific function or module you are working with to ensure that all prerequisites for communication are met.
  Support: If the issue cannot be resolved, consider reaching out to SAP support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to diagnose and resolve the "00453 Conversation not initialized" error in your SAP environment.