How To Fix DMCLG528 - Cardinality of receiver structure in '&1 << &2' in '&3' and '&4' differs

DMCLG528 - Overview

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 528

• Message text: Cardinality of receiver structure in '&1 << &2' in '&3' and '&4' differs

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG528 - Cardinality of receiver structure in '&1 << &2' in '&3' and '&4' differs ?

  The SAP error message DMCLG528 indicates a cardinality mismatch between the receiver structure and the source structure in a data transfer process. This typically occurs in scenarios involving data modeling, such as when using SAP Data Services or SAP BW (Business Warehouse).
  
  Cause:
  The error arises when the cardinality (the number of instances of one entity that can or must be associated with each instance of another entity) of the receiver structure does not match the cardinality of the source structure. This can happen due to:
  
  
  Inconsistent Data Model: The data model defined for the source and target structures may not align. For example, if the source structure allows multiple records (1:N relationship) but the target structure expects a single record (1:1 relationship), this error will occur.
  
  
  Mapping Issues: There may be incorrect mappings defined in the transformation rules between the source and target structures.
  
  
  Changes in Data Model: If there have been recent changes