How To Fix M+020 - No update rules generated: activation not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: M+ -

• Message number: 020

• Message text: No update rules generated: activation not possible

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message M+020 - No update rules generated: activation not possible ?

  The SAP error message M+020 "No update rules generated: activation not possible" typically occurs in the context of the SAP system when there is an issue with the data update rules for a particular InfoObject or InfoProvider in the SAP BW (Business Warehouse) environment. This error indicates that the system is unable to activate the data model because the necessary update rules have not been generated.
  Causes:
  
  Missing Update Rules: The most common cause is that the update rules for the InfoObject or InfoProvider have not been created or generated.
  Incorrect Configuration: There may be configuration issues in the data flow or in the InfoObject settings that prevent the generation of update rules.
  Transport Issues: If the InfoObject or InfoProvider was transported from another system, the transport might not have included all necessary components.
  Data Source Issues: The data source linked to the InfoObject may not be properly configured or may be inactive.
  Authorization Issues: Lack of proper authorizations can also lead to this error, as the system may not allow the generation of update rules.
  
  Solutions:
  
  
  Generate Update Rules:
  
  Go to the Data Warehousing Workbench (transaction code RSA1).
  Navigate to the InfoObject or InfoProvider in question.
  Right-click and select "Generate Update Rules" or "Activate" to create the necessary update rules.
  
  
  
  Check Configuration:
  
  Review the configuration of the InfoObject and ensure that all necessary settings are correctly defined.
  Ensure that the data source is properly linked and configured.
  
  
  
  Transport Check:
  
  If the object was transported, check the transport logs to ensure that all components were successfully transported.
  If necessary, re-transport the missing components.
  
  
  
  Data Source Activation:
  
  Ensure that the data source associated with the InfoObject is active and correctly configured.
  Check the connection to the source system and ensure that it is functioning properly.
  
  
  
  Authorization Check:
  
  Verify that you have the necessary authorizations to create and activate update rules.
  Consult with your SAP security team if you suspect authorization issues.
  
  
  
  Recreate the InfoObject:
  
  As a last resort, if the above steps do not resolve the issue, consider deleting and recreating the InfoObject or InfoProvider.
  
  
  
  Related Information:
  
  Transaction Codes: RSA1 (Data Warehousing Workbench), RSO2 (Manage DataSources), RSO1 (DataSource Maintenance).
  SAP Notes: Check SAP Notes related to this error message for any specific patches or updates that may address the issue.
  Documentation: Refer to SAP Help documentation for detailed information on InfoObjects, update rules, and data modeling in BW.
  
  By following these steps, you should be able to identify and resolve the cause of the M+020 error in your SAP BW environment.