How To Fix BRAINOLAPAPI125 - Invalid MDX statement. DESCENDANTS using different dimensions

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAINOLAPAPI - Message class for OLAP API

• Message number: 125

• Message text: Invalid MDX statement. DESCENDANTS using different dimensions

Self-Explanatory Message

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• What is the cause and solution for SAP error message BRAINOLAPAPI125 - Invalid MDX statement. DESCENDANTS using different dimensions ?

  The SAP error message BRAINOLAPAPI125: Invalid MDX statement. DESCENDANTS using different dimensions typically occurs when there is an issue with the MDX (Multidimensional Expressions) query being executed in SAP BW (Business Warehouse) or SAP Analytics. This error specifically indicates that the DESCENDANTS function is being used incorrectly, particularly when it involves members from different dimensions.
  Cause:
  
  Incorrect Dimension Usage: The DESCENDANTS function is designed to retrieve members from a single hierarchy or dimension. If you attempt to use it with members from different dimensions, the query will fail.
  Hierarchy Issues: If the members specified in the DESCENDANTS function do not belong to the same hierarchy or if there are issues with the hierarchy structure, this can lead to the error.
  Syntax Errors: There may be syntax errors in the MDX statement that lead to the invalid usage of the DESCENDANTS function.
  
  Solution:
  
  Check Dimensions: Ensure that all members used in the DESCENDANTS function belong to the same dimension. If you need to retrieve members from different dimensions, consider restructuring your query.
  Review Hierarchies: Verify that the hierarchies are correctly defined in your data model. Ensure that the members you are querying are part of the same hierarchy.
  Correct Syntax: Review the MDX syntax to ensure it is correct. The basic syntax for the DESCENDANTS function is:
  DESCENDANTS(Member_Expression, [Level_Expression], [Recursive_Flag])
  Make sure that the Member_Expression refers to a member from a single dimension.
  
  Testing: Test the MDX query in smaller parts to isolate the issue. Start with a simple query using DESCENDANTS and gradually add complexity to identify where the error occurs.
  
  Related Information:
  
  MDX Documentation: Refer to the official MDX documentation for detailed information on the DESCENDANTS function and its usage.
  SAP Notes: Check SAP Notes and Knowledge Base Articles for any known issues or updates related to this error.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to resolve the error and successfully execute your MDX query.