How To Fix RS2HANA_VIEW179 - Hierarchy variable &1 used more than once. Same input for all mappings.

SAP Error Message - Details

• Message type: E = Error

• Message class: RS2HANA_VIEW - HANA Views for BW Objects

• Message number: 179

• Message text: Hierarchy variable &1 used more than once. Same input for all mappings.

If there are time/version variables in addition to the hierarchy
variable, the same hierarchy input data is used for all mappings.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RS2HANA_VIEW179 - Hierarchy variable &1 used more than once. Same input for all mappings. ?

  The SAP error message RS2HANA_VIEW179 indicates that a hierarchy variable is being used multiple times in a way that is not allowed. This typically occurs in the context of SAP BW (Business Warehouse) when working with HANA views or when defining queries that involve hierarchy variables.
  Cause:
  The error arises when:
  
  A hierarchy variable is defined in a query or a view and is used in multiple mappings or contexts without proper differentiation.
  The same input is being applied to multiple instances of the hierarchy variable, which can lead to ambiguity in the data retrieval process.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Variable Usage: Review the query or view definition to identify where the hierarchy variable is being used. Ensure that it is not being mapped to multiple fields or contexts simultaneously.
  
  
  Unique Mapping: If the same hierarchy variable is required in different contexts, consider creating separate instances of the variable for each mapping. This can be done by defining new variables that reference the same hierarchy but are treated as distinct in the query.
  
  
  Modify Query Logic: If possible, adjust the logic of your query to avoid using the same hierarchy variable in multiple places. This may involve restructuring how the data is being retrieved or displayed.
  
  
  Test Changes: After making adjustments, test the query or view to ensure that the error is resolved and that the data is being retrieved as expected.
  
  
  Consult Documentation: If you are unsure about how to implement these changes, refer to SAP documentation or community forums for guidance on handling hierarchy variables in BW queries.
  
  
  Related Information:
  
  Hierarchy Variables: These are used in BW queries to allow users to select specific hierarchies dynamically at runtime. They can be based on characteristics that have a hierarchical structure.
  SAP BW on HANA: When working with BW on HANA, it is essential to understand how HANA views and BW queries interact, especially regarding variable handling.
  SAP Notes and Community: Check SAP Notes for any known issues or patches related to this error. The SAP Community forums can also be a valuable resource for troubleshooting and finding solutions from other users who have encountered similar issues.
  
  By following these steps, you should be able to resolve the RS2HANA_VIEW179 error and ensure that your hierarchy variables are used correctly in your SAP BW queries.