How To Fix RSDME357 - Field mapping for predictable field not found. Evaluation not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDME -

• Message number: 357

• Message text: Field mapping for predictable field not found. Evaluation not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDME357 - Field mapping for predictable field not found. Evaluation not possible ?

  The SAP error message RSDME357, which states "Field mapping for predictable field not found. Evaluation not possible," typically occurs in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when there is an issue with the mapping of fields in a data model or transformation process. This error indicates that the system is unable to find a mapping for a field that is expected to be present for a predictable evaluation.
  Causes:
  
  Missing Field Mapping: The field that is expected to be mapped in the transformation or data flow is not defined or is missing.
  Incorrect Data Source: The data source being used may not contain the expected fields, or the structure of the data source has changed.
  Changes in Data Model: If there have been recent changes to the data model, such as renaming or deleting fields, this can lead to mapping issues.
  Inconsistent Data Types: The data types of the fields in the source and target may not match, leading to mapping failures.
  Transformation Logic Errors: Errors in the transformation logic can also lead to this issue if the expected fields are not being processed correctly.
  
  Solutions:
  
  Check Field Mapping: Review the transformation or data flow to ensure that all required fields are correctly mapped. Make sure that the predictable fields are defined in the mapping.
  Validate Data Source: Ensure that the data source being used contains the expected fields. If the structure has changed, update the mapping accordingly.
  Update Data Model: If there have been changes to the data model, ensure that all transformations and queries are updated to reflect these changes.
  Check Data Types: Verify that the data types of the fields in the source and target match. If there are discrepancies, adjust the mapping or transformation logic.
  Debug Transformation Logic: If the issue persists, debug the transformation logic to identify any errors that may be causing the mapping to fail.
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to check the data model and transformations.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Refer to SAP documentation for BW/4HANA or the specific version you are using for detailed information on field mapping and transformations.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions 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 RSDME357 error in your SAP BW environment.