How To Fix RS_B4H_SOURCE_APD021 - Incorrect structure

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_B4H_SOURCE_APD -

• Message number: 021

• Message text: Incorrect structure

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RS_B4H_SOURCE_APD021 - Incorrect structure ?

  The SAP error message RS_B4H_SOURCE_APD021 "Incorrect structure" typically occurs in the context of SAP BW (Business Warehouse) when there is a mismatch or inconsistency in the data structure expected by a process or a query. This error can arise in various scenarios, such as when working with data sources, InfoProviders, or during data extraction and transformation processes.
  Causes:
  
  Data Structure Mismatch: The structure of the data being processed does not match the expected structure defined in the InfoObject or InfoProvider.
  Changes in Data Model: If there have been recent changes to the data model (e.g., changes in InfoObjects, InfoProviders, or transformations), it may lead to inconsistencies.
  Incorrect Data Source Configuration: The data source may not be correctly configured, leading to an incorrect structure being used.
  Missing Fields: Required fields in the data structure may be missing or not properly mapped.
  Versioning Issues: If there are multiple versions of the data model or if the system is not updated, it may lead to discrepancies.
  
  Solutions:
  
  Check Data Structure: Verify the structure of the data source and ensure it matches the expected structure in the target InfoProvider or transformation.
  Update Data Model: If there have been changes to the data model, ensure that all related objects (like transformations and data sources) are updated accordingly.
  Reconfigure Data Source: Review the configuration of the data source and make sure it is set up correctly, including field mappings and data types.
  Check for Missing Fields: Ensure that all required fields are present in the data being processed and that they are correctly mapped in the transformation.
  Transport Requests: If the issue arose after a transport, check if the transport included all necessary objects and that they are in sync with the target system.
  Debugging: Use the SAP BW debugging tools to trace the process and identify where the structure mismatch is occurring.
  
  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 errors.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSO2 (Data Source Maintenance), and RSMO (Monitor Data Load) to help diagnose and resolve the issue.
  Documentation: Review SAP documentation for BW data modeling and extraction processes to ensure compliance with best practices.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support or consulting with a BW expert for further assistance.