How To Fix UJA_CHECK_BIZ_RULES018 - The field should not be a child member of Source DataSource

SAP Error Message - Details

• Message type: E = Error

• Message class: UJA_CHECK_BIZ_RULES -

• Message number: 018

• Message text: The field should not be a child member of Source DataSource

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJA_CHECK_BIZ_RULES018 - The field should not be a child member of Source DataSource ?

  The SAP error message UJA_CHECK_BIZ_RULES018 indicates that there is an issue with the structure of the data source in your SAP system, specifically related to the hierarchy of the fields in the data source. This error typically arises in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when working with InfoObjects, DataSources, or during data modeling.
  Cause:
  The error message suggests that a field you are trying to use is defined as a child member of a parent member in the data source, which is not allowed in the context of the operation you are attempting. This can happen due to:
  
  Hierarchical Structure Issues: The field is incorrectly defined in the hierarchy of the data source.
  DataSource Configuration: The DataSource may have been configured incorrectly, leading to a violation of the business rules that govern the relationships between fields.
  Incompatible Field Types: The field types or characteristics may not align with the expected structure for the DataSource.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check DataSource Configuration:
  
  Go to the DataSource in the SAP BW system and review its structure.
  Ensure that the fields are correctly defined and that the hierarchy is appropriate. The child member should not be defined as a child of the source DataSource if it is not supposed to be.
  
  
  
  Review Field Definitions:
  
  Check the definitions of the fields involved. Make sure that the field you are trying to use is not incorrectly set as a child member.
  If necessary, adjust the field definitions to ensure they comply with the expected structure.
  
  
  
  Adjust Hierarchy:
  
  If the field is indeed a child member, consider whether it should be moved to a different level in the hierarchy or if it should be redefined as a sibling or parent member instead.
  
  
  
  Recreate DataSource:
  
  If the DataSource configuration is too complex or if you cannot identify the issue, consider recreating the DataSource with the correct structure from scratch.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for specific guidelines on configuring DataSources and InfoObjects, as they may provide additional insights into the correct setup.
  
  
  
  Testing:
  
  After making changes, test the DataSource to ensure that the error no longer occurs and that the data is being processed correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation related to SAP BW data modeling and DataSource configuration for a deeper understanding of best practices.
  
  By following these steps, you should be able to identify and resolve the issue causing the UJA_CHECK_BIZ_RULES018 error in your SAP system.