How To Fix RSDS312 - Web service: Incompatible structure change applied

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDS - New DataSource

• Message number: 312

• Message text: Web service: Incompatible structure change applied

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDS312 - Web service: Incompatible structure change applied ?

  The SAP error message RSDS312, which states "Web service: Incompatible structure change applied," typically occurs in the context of SAP Data Services or when working with SAP BW (Business Warehouse) web services. This error indicates that there has been a change in the structure of the data source or the data model that is not compatible with the existing web service definition.
  Causes:
  
  Data Source Changes: Changes in the underlying data source (like adding or removing fields) that are not reflected in the web service definition.
  Data Model Changes: Modifications to the data model in SAP BW, such as changes to InfoObjects, InfoProviders, or queries that affect the structure of the data being exposed through the web service.
  Version Mismatch: The web service may be referencing an outdated version of the data structure, leading to incompatibility.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), and the web service was not updated accordingly.
  
  Solutions:
  
  
  Update Web Service Definition: 
  
  Go to the relevant transaction (like RSA1 for BW) and update the web service definition to reflect the current structure of the data source.
  Regenerate the web service if necessary.
  
  
  
  Check Data Source: 
  
  Verify the data source for any recent changes. If changes were made, ensure that the web service is updated to accommodate these changes.
  
  
  
  Recreate the Web Service: 
  
  If the changes are significant, consider recreating the web service from scratch to ensure that it aligns with the current data structure.
  
  
  
  Test the Web Service: 
  
  After making changes, test the web service to ensure that it is functioning correctly and that the data is being returned as expected.
  
  
  
  Consult Documentation: 
  
  Review SAP documentation or notes related to the specific version of SAP you are using for any known issues or additional steps that may be required.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide guidance on handling structure changes in web services.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), SE80 (Object Navigator), and others that may help in managing web services and data sources.
  Version Control: Implement version control for your data models and web services to track changes and facilitate easier updates in the future.
  
  By following these steps, you should be able to resolve the RSDS312 error and ensure that your web service is compatible with the current data structure.