How To Fix RSDPP108 - Key mapping not possible for source field &1 in transformation &2

RSDPP108 - Overview

• Message type: E = Error

• Message class: RSDPP - BW: Data Privacy Protection

• Message number: 108

• Message text: Key mapping not possible for source field &1 in transformation &2

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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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDPP108 - Key mapping not possible for source field &1 in transformation &2 ?

  The SAP error message RSDPP108, which states "Key mapping not possible for source field &1 in transformation &2," typically occurs in the context of data transformations in SAP BW (Business Warehouse) when there is an issue with mapping fields between the source and target data structures.
  
  Cause:
  
  Field Mismatch: The source field specified in the transformation does not exist in the source data source or is not compatible with the target field.
  Data Type Issues: There may be a mismatch in data types between the source field and the target field, which prevents proper mapping.
  Missing Key Mapping: The transformation may require a key mapping that has not been defined or is incomplete.
  Incorrect Transformation Logic: The transformation logic may not be correctly set up to handle the source field.
  Data Source Changes: Changes in the underlying data source structure (like adding or removing fields) that are not reflected in the transformation.
  
  
  Solution:
  
  Check Field Existence: Verify that