How To Fix LTR2_ES_CHECK_CNV021 - Copy flag set, but no transformation rule assigned to any key field

LTR2_ES_CHECK_CNV021 - Overview

• Message type: E = Error

• Message class: LTR2_ES_CHECK_CNV - Messages for OBC Checks

• Message number: 021

• Message text: Copy flag set, but no transformation rule assigned to any key field

Self-Explanatory Message

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LTR2_ES_CHECK_CNV021 - Details

• The SAP error message LTR2_ES_CHECK_CNV021 indicates that there is a configuration issue related to the data transformation process in the SAP Landscape Transformation (SLT) or Data Migration process. Specifically, it means that the copy flag is set for a certain operation, but there are no transformation rules assigned to any key field, which is necessary for the data transfer or transformation to occur correctly.
  
  Cause:
  
  Missing Transformation Rules: The primary cause of this error is that the system expects transformation rules to be defined for the key fields of the data being processed, but none have been assigned.
  Incorrect Configuration: The configuration for the data transfer or transformation may not have been set up correctly, leading to the absence of necessary transformation rules.
  Data Model Changes: If there have been changes to the data model (e.g., changes in the source or target structure), the existing transformation rules may no longer be valid or applicable.
  
  
  Solution:
  
  
  Define