How To Fix CD128 - & & RFC started OK

SAP Error Message - Details

• Message type: E = Error

• Message class: CD - Change Documents

• Message number: 128

• Message text: & & RFC started OK

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CD128 - & & RFC started OK ?

  The SAP error message CD128 typically indicates an issue related to the Remote Function Call (RFC) connection. The message "RFC started OK" suggests that the RFC connection was established successfully, but there may be other underlying issues that need to be addressed.
  Cause:
  
  Configuration Issues: The RFC destination may not be configured correctly in the SAP system.
  Network Problems: There could be network connectivity issues between the SAP systems.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Load: High system load or performance issues could lead to timeouts or failures in processing requests.
  Version Mismatch: There may be a version mismatch between the systems involved in the RFC call.
  
  Solution:
  
  
  Check RFC Destination:
  
  Go to transaction SM59 and verify the configuration of the RFC destination.
  Test the connection to ensure it is working properly.
  
  
  
  Network Connectivity:
  
  Ensure that there are no firewall or network issues preventing communication between the systems.
  Use tools like ping or traceroute to check connectivity.
  
  
  
  User Authorizations:
  
  Verify that the user credentials used for the RFC connection have the necessary authorizations.
  Check the roles and profiles assigned to the user.
  
  
  
  Monitor System Performance:
  
  Use transaction SM50 or SM66 to monitor system performance and check for any long-running processes or locks.
  If the system is under heavy load, consider optimizing performance or scheduling jobs during off-peak hours.
  
  
  
  Check for Version Compatibility:
  
  Ensure that the SAP systems involved in the RFC call are compatible in terms of versions and patches.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages or information that could help diagnose the issue.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC connections or the CD128 error.
  Documentation: Review the official SAP documentation for RFC configuration and troubleshooting.
  Community Forums: Consider checking SAP Community forums or other online resources for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.