How To Fix RSDME151 - Extra model field mapping exists

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDME -

• Message number: 151

• Message text: Extra model field mapping exists

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDME151 - Extra model field mapping exists ?

  The SAP error message RSDME151, which states "Extra model field mapping exists," typically occurs in the context of SAP BW (Business Warehouse) when there is a mismatch or inconsistency in the field mappings between the InfoObject and the data model (like an InfoCube or DataStore Object).
  Cause:
  This error can arise due to several reasons:
  
  Field Mapping Issues: There may be fields in the data model that are not present in the InfoObject or are incorrectly mapped.
  Changes in InfoObjects: If the structure of the InfoObject has been changed (e.g., fields added or removed) after the data model was created, it can lead to inconsistencies.
  DataSource Changes: If the DataSource has been modified and the changes are not reflected in the data model, it can cause this error.
  Inconsistent Data Model: The data model may have been manually altered or not properly updated after changes were made to the underlying InfoObjects.
  
  Solution:
  To resolve the RSDME151 error, you can follow these steps:
  
  
  Check Field Mappings:
  
  Go to the data model (InfoCube or DataStore Object) and check the field mappings.
  Ensure that all fields in the data model correspond to fields in the InfoObject.
  
  
  
  Update Data Model:
  
  If there have been changes to the InfoObject, you may need to update the data model to reflect these changes.
  You can do this by using the "Change" function in the data model and adjusting the mappings accordingly.
  
  
  
  Re-activate the Data Model:
  
  After making changes, re-activate the data model to ensure that the changes take effect.
  
  
  
  Check DataSource:
  
  If the error is related to a DataSource, ensure that the DataSource is correctly configured and that its structure matches the data model.
  
  
  
  Use the BW Modeling Tools:
  
  If you are using BW Modeling Tools, you can use the "Check" functionality to identify any inconsistencies in the model.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP BW you are using for any additional troubleshooting steps or known issues.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like RSA1 (Data Warehousing Workbench) to access the data model and InfoObjects.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to identify and resolve the cause of the RSDME151 error in your SAP BW environment.