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

SAP Error Message - Details

• 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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Smart SAP Assistant

• What is the cause and solution for SAP error message /STMC/CR_MSG862 - Error while mapping request data; request &1 returned more than 1 row ?

  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 the actual data does not conform to this assumption.
  
  
  Data Model Issues: The underlying data model may not be designed correctly, leading to multiple records being returned for a single request.
  
  
  Solution:
  
  
  Check Data Source: Investigate the data source to identify why multiple rows are being returned. You can run the query directly in the database to see the results and understand the duplication.
  
  
  Review Mapping Logic: Examine the mapping configuration in the SAP system. Ensure that the mapping is set up correctly to handle the expected data structure. If a one-to-one mapping is required, you may need to adjust the logic to filter or aggregate the data appropriately.
  
  
  Data Cleansing: If the issue is due to duplicate records in the source data, consider implementing data cleansing processes to remove duplicates or consolidate records before they are processed.
  
  
  Modify Query: If applicable, modify the query to ensure it returns a single row. This could involve adding additional filters or using aggregation functions (like GROUP BY) to consolidate the results.
  
  
  Error Handling: Implement error handling in your data processing logic to manage situations where multiple rows are returned. This could involve logging the error, notifying the relevant team, or implementing fallback logic.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review the documentation for the specific SAP module or tool you are using (e.g., SAP Data Services, SAP BW) to understand how it handles data mapping and transformations.
  Community Forums: Engage with SAP community forums or user groups to see if others have encountered similar issues and what solutions they have implemented.
  
  By following these steps, you should be able to diagnose and resolve the error message /STMC/CR_MSG862 effectively.