How To Fix /STMC/CR_MSG862 - Error while mapping request data; request &1 returned more than 1 row

/STMC/CR_MSG862 - Overview

• Message type: E = Error

• Message class: /STMC/CR_MSG -

• Message number: 862

• Message text: Error while mapping request data; request &1 returned more than 1 row

Self-Explanatory Message

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/STMC/CR_MSG862 - Details

• The SAP error message /STMC/CR_MSG862 indicates that there is an issue with mapping request data in the context of a data transfer or data processing operation. Specifically, the error states that the request identified by &1 returned more than one row when only a single row was expected. This typically occurs in scenarios involving data extraction, transformation, or loading (ETL) processes, especially when working with data from a database or a data source.
  
  Cause:
  
  
  Data Duplication: The most common cause of this error is that the query or data extraction logic is returning multiple records for a specific key or identifier when only one record is expected. This can happen due to:
  
  Duplicate entries in the source data.
  Incorrect join conditions in the query.
  Misconfigured data mappings or transformations.
  
  
  
  Incorrect Mapping Logic: The mapping logic may be set up in such a way that it assumes a one-to-one relationship between the source and target data, but