How To Fix RS_B4H_PREPARE_APD053 - Join cond. fields '&1 = &2' are mapped to the different output fields.

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_B4H_PREPARE_APD - Message class for APD transfer prepare package

• Message number: 053

• Message text: Join cond. fields '&1 = &2' are mapped to the different output fields.

What causes this issue?

Both fields from the join condition are mapped to the different output
fields in the APD node. Such join condition is not supported in HCPR,
except when the fields carry information about unit or currency.

System Response

In generated HCPR both join condition fields will be mapped to the same
output field.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS_B4H_PREPARE_APD053 - Join cond. fields '&1 = &2' are mapped to the different output fields. ?

  The SAP error message RS_B4H_PREPARE_APD053 indicates that there is a problem with the mapping of fields in a join condition within a data flow or transformation in SAP BW (Business Warehouse). Specifically, it suggests that the fields used in the join condition are mapped to different output fields, which can lead to inconsistencies or errors in data processing.
  Cause:
  
  Field Mapping Issues: The fields specified in the join condition are not correctly mapped to the output fields. This can happen if the fields are incorrectly defined in the data model or if there are discrepancies in the data source definitions.
  Data Source Changes: If there have been changes to the underlying data sources or InfoObjects, it may lead to mismatches in the expected field mappings.
  Transformation Logic: The transformation logic may not be correctly set up to handle the join conditions, leading to conflicts in the output fields.
  
  Solution:
  
  Check Field Mappings: Review the field mappings in the transformation or data flow where the error occurs. Ensure that the fields used in the join condition are correctly mapped to the appropriate output fields.
  Validate Data Sources: Ensure that the data sources and InfoObjects involved in the join are correctly defined and have not been altered in a way that affects their mappings.
  Adjust Transformation Logic: If necessary, modify the transformation logic to ensure that the join conditions are correctly defined and that the output fields are consistent with the join criteria.
  Test the Data Flow: After making adjustments, test the data flow or transformation to ensure that the error is resolved and that data is processed correctly.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on troubleshooting.
  Documentation: Review SAP BW documentation related to data modeling, transformations, and join conditions to ensure best practices are followed.
  Community Forums: Consider searching or posting in SAP community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the RS_B4H_PREPARE_APD053 error in your SAP BW environment.