How To Fix IUUC_CLOG_CORE014 - RFC-Block Size

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_CLOG_CORE - SLT Change Log Messages

• Message number: 014

• Message text: RFC-Block Size

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_CLOG_CORE014 - RFC-Block Size ?

  The SAP error message IUUC_CLOG_CORE014, which relates to RFC (Remote Function Call) block size, typically occurs in the context of SAP Landscape Transformation (SLT) replication. This error indicates that the size of the data being processed exceeds the maximum allowable block size for RFC communication.
  Cause:
  
  Data Volume: The error is often caused by attempting to replicate a large volume of data in a single RFC call, which exceeds the maximum block size limit set by the SAP system.
  Configuration Settings: The RFC block size may not be configured optimally for the amount of data being processed.
  Network Issues: Sometimes, network latency or issues can exacerbate the problem, leading to larger data packets being sent.
  
  Solution:
  
  
  Adjust RFC Block Size:
  
  You can adjust the RFC block size settings in the SAP system. This can be done by modifying the parameters in the RFC destination settings.
  Use transaction RZ10 to change the profile parameters related to RFC. Look for parameters like rfc/max_queued_packets and rfc/max_block_size and adjust them accordingly.
  
  
  
  Batch Processing:
  
  If possible, break down the data into smaller batches to ensure that each RFC call stays within the allowable block size.
  This can be done by adjusting the settings in the SLT configuration to limit the amount of data sent in each replication cycle.
  
  
  
  Monitor and Optimize Data Replication:
  
  Monitor the data replication process to identify any patterns or specific data sets that consistently cause issues.
  Optimize the data model or the way data is being replicated to reduce the volume of data being processed at once.
  
  
  
  Check Network Configuration:
  
  Ensure that the network configuration is optimal and that there are no issues that could be causing delays or packet loss.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may provide additional guidance or patches related to this error.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for SLT and RFC settings for detailed instructions on configuration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Performance Monitoring Tools: Utilize SAP performance monitoring tools to analyze the replication process and identify bottlenecks.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.