How To Fix CNV_IUUC_REPLICATION125 - Key field &1 included in the blacklist for table &2

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 125

• Message text: Key field &1 included in the blacklist for table &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_REPLICATION125 - Key field &1 included in the blacklist for table &2 ?

  The SAP error message CNV_IUUC_REPLICATION125 indicates that a key field (denoted as &1) is included in a blacklist for a specific table (denoted as &2) during the data replication process. This typically occurs in the context of SAP Landscape Transformation (SLT) or SAP Data Services, where certain fields are restricted from being replicated due to various reasons, such as data integrity, performance considerations, or specific business rules.
  Cause:
  
  Blacklisted Fields: The key field is part of a predefined blacklist that prevents it from being replicated. This could be due to the field being non-replicable or having constraints that make replication problematic.
  Configuration Issues: The SLT configuration may have been set up to exclude certain fields from replication, either intentionally or due to oversight.
  Data Model Changes: Changes in the data model or the underlying database schema may have led to the field being added to the blacklist.
  
  Solution:
  
  Review Blacklist Configuration: Check the SLT configuration to see if the field is intentionally blacklisted. You can do this by accessing the SLT configuration settings in the SAP system.
  Modify Replication Settings: If the field needs to be replicated, you may need to remove it from the blacklist. This can typically be done in the SLT configuration settings or by adjusting the replication settings for the specific table.
  Consult Documentation: Refer to SAP documentation or notes related to the specific table and field to understand why it might be blacklisted and if there are any recommended practices for handling it.
  Data Model Review: If the field is critical for your business processes, consider reviewing the data model to ensure that it aligns with your replication needs and that the field can be safely included.
  Testing: After making changes, perform thorough testing to ensure that the replication works as expected and that there are no adverse effects on data integrity or performance.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this specific error message.
  SLT Documentation: Review the official SAP documentation for SLT to understand the implications of blacklisting fields and how to manage replication settings.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the issue persists after following these steps, it may be beneficial to reach out to SAP support for further assistance.