How To Fix CNV_IUUC_REPLICATION008 - RFC comm error &2 (rfc &1) Table &3 in MT-ID &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_REPLICATION - IUUC replication messages (HANA)

• Message number: 008

• Message text: RFC comm error &2 (rfc &1) Table &3 in MT-ID &4

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION008 - RFC comm error &2 (rfc &1) Table &3 in MT-ID &4 ?

  The SAP error message CNV_IUUC_REPLICATION008 typically indicates an issue with Remote Function Call (RFC) communication during the data replication process, particularly in the context of SAP Landscape Transformation (SLT) or SAP Data Services. This error can occur for various reasons, and understanding the cause and potential solutions is essential for troubleshooting.
  Cause:
  
  Network Issues: There may be network connectivity problems between the source and target systems, leading to RFC communication failures.
  RFC Destination Configuration: The RFC destination might not be correctly configured or might be inactive.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to perform the required operations.
  System Load: High system load or performance issues on either the source or target system can lead to timeouts or communication errors.
  Table Locking: The target table might be locked or in use by another process, preventing the replication from completing successfully.
  Data Consistency Issues: There may be inconsistencies in the data being replicated, causing the process to fail.
  
  Solution:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the source and target systems. You can use tools like ping or traceroute to diagnose network issues.
  Verify RFC Destination: Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination. Ensure it is active and correctly configured.
  Review Authorizations: Check the user credentials used for the RFC connection and ensure that they have the necessary authorizations to access the required tables and perform the replication.
  Monitor System Performance: Use transaction SM50 or SM66 to monitor system performance and check for any processes that may be causing high load or blocking the replication.
  Check Table Locks: Use transaction SM12 to check for any locks on the target table. If there are locks, you may need to resolve them before retrying the replication.
  Review Logs: Check the SLT logs or the application logs (transaction SLG1) for more detailed error messages that can provide additional context on the failure.
  Retry the Replication: After addressing the above issues, you can retry the replication process to see if the error persists.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM59 (RFC Destinations), SM50 (Process Overview), SM66 (Global Process Overview), and SLG1 (Application Log).
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  Documentation: Review the official SAP documentation for SLT or data replication for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed logs and error messages for a more in-depth analysis.