How To Fix CNV_IUUC_REPLICATION203 - Duplicate key for tabname &1 in &2. Customizing configuration not saved.

CNV_IUUC_REPLICATION203 - Overview

• Message type: E = Error

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

• Message number: 203

• Message text: Duplicate key for tabname &1 in &2. Customizing configuration not saved.

Self-Explanatory Message

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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.

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CNV_IUUC_REPLICATION203 - Details

• The SAP error message CNV_IUUC_REPLICATION203 indicates that there is a duplicate key issue in a specific table during the replication process. This error typically arises in the context of SAP Landscape Transformation (SLT) or data replication scenarios where data is being transferred from one system to another.
  
  Cause:
  The error message suggests that there is an attempt to insert or update a record in a table where the key already exists. This can happen due to several reasons:
  
  Duplicate Data: The source system may have duplicate records that are being replicated.
  Incorrect Configuration: The configuration settings for the replication might not be set up correctly, leading to conflicts.
  Data Consistency Issues: There may be inconsistencies in the data between the source and target systems.
  Timing Issues: If multiple processes are trying to insert the same record simultaneously, it can lead to a duplicate key error.
  
  
  Solution:
  To resolve the CNV_IUUC_REPLICATION203 error, you can follow these steps:
  
  
  Check for Duplicates: