How To Fix DMCLG529 - Cardinality of sender structure in '&1 << &2' in '&3' and '&4' differs

DMCLG529 - Overview

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 529

• Message text: Cardinality of sender 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 DMCLG529 - Cardinality of sender structure in '&1 << &2' in '&3' and '&4' differs ?

  The SAP error message DMCLG529 indicates a cardinality mismatch in the sender structure during data transfer or transformation processes, particularly in the context of Data Migration or Data Transfer processes in SAP systems. This error typically arises when the expected number of records or elements in a data structure does not match the actual number being processed.
  
  Cause:
  
  Cardinality Mismatch: The error occurs when the cardinality (the number of instances of a data element) of the sender structure does not match the expected cardinality in the target structure. For example, if the sender structure is expected to have a one-to-many relationship but is defined as one-to-one in the target structure, this error will be triggered.
  Incorrect Mapping: The mapping between the source and target structures may be incorrectly defined, leading to discrepancies in the expected data format.
  Data Quality Issues: The data being processed may contain unexpected values or formats that do not conform