How To Fix RSWADMDERR1398 - Mandatory list Parameter without children

SAP Error Message - Details

• Message type: E = Error

• Message class: RSWADMDERR1 - Web Application Designer 4.0 Error Messages

• Message number: 398

• Message text: Mandatory list Parameter without children

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSWADMDERR1398 - Mandatory list Parameter without children ?

  The SAP error message RSWADMDERR1398 indicates that a mandatory list parameter is missing children or sub-parameters that are required for the execution of a report or a function module. This error typically occurs in the context of SAP BW (Business Warehouse) or when dealing with data extraction and reporting.
  Cause:
  
  Missing Hierarchy Levels: The parameter that is expected to have child nodes or values does not have any associated data. This can happen if the hierarchy is not properly defined or if the data is missing in the underlying data source.
  Incorrect Configuration: The configuration of the report or the data extraction process may not be set up correctly, leading to the absence of required parameters.
  Data Issues: There may be issues with the data itself, such as missing entries in the database or incorrect data loading processes.
  
  Solution:
  
  Check Hierarchy Configuration: Verify that the hierarchy for the parameter in question is correctly defined and that it includes the necessary child nodes. You can do this by checking the relevant InfoObject or characteristic in the SAP BW system.
  Data Validation: Ensure that the data source has the required data loaded. You may need to run data loads or check the data extraction process to ensure that all necessary data is present.
  Parameter Settings: Review the settings of the report or query to ensure that all mandatory parameters are correctly configured and that they have the necessary child values.
  Debugging: If you have access to the development environment, you can debug the report or function module to identify where the error is occurring and what specific parameter is causing the issue.
  Consult Documentation: Refer to SAP documentation or notes related to the specific report or function module to see if there are any known issues or additional configuration steps required.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Transaction Codes: Use transaction codes like RSA1 (Data Warehousing Workbench) to check the InfoObjects and their hierarchies.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.