How To Fix /PM0/3FWTG_GENERATOR034 - Persistence service is only generated if at least 1 attribute is selected

SAP Error Message - Details

• Message type: E = Error

• Message class: /PM0/3FWTG_GENERATOR -

• Message number: 034

• Message text: Persistence service is only generated if at least 1 attribute is selected

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PM0/3FWTG_GENERATOR034 - Persistence service is only generated if at least 1 attribute is selected ?

  The SAP error message /PM0/3FWTG_GENERATOR034 indicates that the persistence service for a certain object or entity is not being generated because no attributes have been selected. This typically occurs in the context of SAP's data modeling or service generation processes, particularly when working with the SAP Gateway or OData services.
  Cause:
  The error is caused by the following reasons:
  
  No Attributes Selected: When generating a persistence service, at least one attribute must be selected for the service to be created. If none are selected, the system cannot generate the service.
  Configuration Issues: There may be a misconfiguration in the data model or service definition that prevents attributes from being selected.
  Modeling Errors: There could be issues in the underlying data model that lead to the absence of attributes.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Select Attributes:
  
  Go to the service generation or data model configuration screen.
  Ensure that at least one attribute is selected for the persistence service. This is usually done in the service definition or entity type configuration.
  
  
  
  Check Data Model:
  
  Review the data model to ensure that it is correctly defined and that attributes are available for selection.
  If you are using a custom data model, ensure that the attributes are properly defined in the underlying database or data structure.
  
  
  
  Re-generate the Service:
  
  After selecting the necessary attributes, attempt to regenerate the persistence service.
  Make sure to save any changes before re-generating.
  
  
  
  Review Documentation:
  
  Consult the SAP documentation or help resources related to the specific module or service you are working with. This can provide insights into the requirements for service generation.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as sometimes bugs can be resolved in newer versions.
  
  
  
  Consult with SAP Support:
  
  If the issue persists after following the above steps, consider reaching out to SAP support for further assistance. They may provide additional insights or solutions based on your specific configuration.
  
  
  
  Related Information:
  
  SAP Gateway: This is the technology that allows you to connect devices, environments, and applications to SAP systems. Understanding how it works can help in troubleshooting service generation issues.
  OData Services: Familiarize yourself with OData service concepts, as they are often involved in the persistence service generation process.
  Data Modeling: Knowledge of data modeling principles in SAP can help you understand how to properly define and select attributes for your services.
  
  By following these steps, you should be able to resolve the error and successfully generate the persistence service.