How To Fix IUUC_MAIN063 - Key field difference detected for table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_MAIN - IUUC: Main Message class

• Message number: 063

• Message text: Key field difference detected for table &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message IUUC_MAIN063 - Key field difference detected for table &1 ?

  The SAP error message IUUC_MAIN063 indicates that there is a key field difference detected for a specific table during the initial load or delta replication process in the SAP Landscape Transformation (SLT) replication setup. This error typically arises when there is a mismatch in the key fields of the source and target tables, which can prevent successful data replication.
  
  Cause:
  
  Key Field Mismatch: The key fields in the source table do not match the key fields defined in the target table. This can happen if the structure of the source table has changed (e.g., fields added, removed, or modified) after the initial configuration.
  Data Inconsistency: There may be inconsistencies in the data between the source and target systems, such as missing or duplicate key values.
  
  Configuration Issues: The SLT configuration may not be set up correctly, leading to discrepancies in how key fields are defined or mapped.
  
  
  Solution:
  
  Check Table Structure: Verify the structure of the