How To Fix RSDME878 - No of Key(s) in the Extract is not the same as no. of Classified Objects

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDME -

• Message number: 878

• Message text: No of Key(s) in the Extract is not the same as no. of Classified Objects

What causes this issue?

Number of Key(s) in the Extract used for ABC classification is not the
same the number of Classified object(s) defined in the model.

System Response

Duplicate records will not be conisdered for the ABC Classification
process.
A warning message is raised as part of the Classification process.

How to fix this error?

Try to make all the Key(s) from the Extract table as Classified
Objects(s), if they are meaningful for the model.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSDME878 - No of Key(s) in the Extract is not the same as no. of Classified Objects ?

  The SAP error message RSDME878, which states "No of Key(s) in the Extract is not the same as no. of Classified Objects," typically occurs in the context of data extraction processes, particularly when working with SAP BW (Business Warehouse) or SAP BI (Business Intelligence). This error indicates a mismatch between the number of keys in the data extract and the number of classified objects (or characteristics) that are expected.
  Cause:
  
  
  Mismatch in Data Structure: The number of keys (characteristics) in the data extract does not match the number of classified objects defined in the InfoObject or DataSource. This can happen if there are changes in the data model or if the extraction logic has been modified.
  
  
  Incorrect DataSource Configuration: If the DataSource is not correctly configured or if there are changes in the underlying data structure (like changes in the InfoObjects), it can lead to this error.
  
  
  Data Extraction Issues: If there are issues during the data extraction process, such as missing or incomplete data, it can result in a mismatch.
  
  
  Transformation Issues: If there are transformations applied to the data that alter the number of keys being extracted, this can also lead to the error.
  
  
  Solution:
  
  
  Check DataSource Configuration: Verify the configuration of the DataSource in SAP BW. Ensure that the number of keys defined in the DataSource matches the number of keys in the InfoObject.
  
  
  Review InfoObjects: Check the InfoObjects involved in the extraction process. Ensure that they are correctly defined and that there have been no changes that could affect the extraction.
  
  
  Validate Data Extraction Logic: Review the extraction logic to ensure that it is correctly implemented and that it is not inadvertently altering the number of keys being extracted.
  
  
  Check for Data Consistency: Ensure that the data being extracted is consistent and complete. Look for any missing or null values that could lead to a mismatch.
  
  
  Re-activate DataSource: Sometimes, re-activating the DataSource can resolve issues related to metadata inconsistencies.
  
  
  Debugging: If the issue persists, consider debugging the extraction process to identify where the mismatch is occurring. This may involve checking the logs for any additional error messages or warnings.
  
  
  Consult Documentation: Refer to SAP documentation or support notes related to the specific version of SAP BW you are using for any known issues or additional troubleshooting steps.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues related to this error message. SAP frequently updates its knowledge base with solutions to common problems.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Training and Documentation: Ensure that you have access to the latest training materials and documentation for SAP BW, as this can help in understanding the data extraction process better.
  
  By following these steps, you should be able to identify and resolve the cause of the RSDME878 error in your SAP BW environment.