How To Fix RSDHA303 - Mandatory mapping for key field '&1' of target table '&2' missing

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDHA - HANA Analysis in BW

• Message number: 303

• Message text: Mandatory mapping for key field '&1' of target table '&2' missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDHA303 - Mandatory mapping for key field '&1' of target table '&2' missing ?

  The SAP error message RSDHA303 indicates that there is a mandatory mapping issue for a key field in a target table. This typically occurs in the context of data modeling in SAP BW (Business Warehouse) or when working with InfoObjects and DataSources.
  Cause:
  The error arises when a key field in the target table (usually an InfoObject or a DataStore Object) does not have a corresponding mapping defined in the transformation or data flow. This means that the system cannot determine how to populate that key field with data from the source.
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check the Transformation:
  
  Go to the transformation that is causing the error.
  Ensure that all mandatory fields in the target table are mapped correctly from the source fields. 
  
  
  
  Mapping Configuration:
  
  If the key field is not mapped, you need to create a mapping for it. This can be done by:
  
  Opening the transformation in the SAP BW Modeling Tools.
  Dragging the appropriate source field to the target key field in the mapping area.
  
  
  
  
  
  Check InfoObject Settings:
  
  Verify the settings of the InfoObject associated with the target table. Ensure that the key field is defined correctly and is marked as mandatory.
  
  
  
  DataSource Configuration:
  
  If the source DataSource does not provide the necessary data for the key field, you may need to adjust the DataSource or use a different one that includes the required data.
  
  
  
  Activate the Transformation:
  
  After making the necessary changes, activate the transformation and check if the error persists.
  
  
  
  Test the Data Load:
  
  Run a test data load to ensure that the mapping is now correct and that the data is being populated as expected.
  
  
  
  Related Information:
  
  SAP BW Modeling Tools: Familiarize yourself with the BW Modeling Tools in SAP HANA Studio or Eclipse, as they provide a graphical interface for managing transformations and data flows.
  InfoObjects: Understand the structure and properties of InfoObjects, especially key fields, to ensure proper configuration.
  DataSource: Review the DataSource settings to ensure it provides all necessary fields for the transformation.
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates related to this error.
  
  By following these steps, you should be able to resolve the RSDHA303 error and ensure that your data mappings are correctly configured.