How To Fix /FTI/SERV_TECH_ERROR002 - Top must be a positive integer value or zero

SAP Error Message - Details

• Message type: E = Error

• Message class: /FTI/SERV_TECH_ERROR -

• Message number: 002

• Message text: Top must be a positive integer value or zero

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /FTI/SERV_TECH_ERROR002 - Top must be a positive integer value or zero ?

  The SAP error message /FTI/SERV_TECH_ERROR002 indicating "Top must be a positive integer value or zero" typically arises in the context of SAP Fiori or SAP Gateway services, particularly when dealing with OData services or Fiori applications that involve pagination or limits on data retrieval.
  Cause:
  This error usually occurs when a parameter that is expected to be a positive integer or zero is either missing, negative, or incorrectly formatted. This can happen in scenarios such as:
  
  Incorrect Parameter Value: The parameter for pagination (like $top) is set to a negative value or is not provided at all.
  Configuration Issues: There may be issues in the configuration of the OData service or the Fiori application that lead to incorrect parameter handling.
  Client-Side Issues: The client application (like a Fiori app) may be sending an invalid request to the backend service.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Request Parameters: Ensure that the $top parameter in your OData request is set to a valid positive integer or zero. For example, if you are using a URL like:
  /sap/opu/odata/sap/YOUR_SERVICE?$top=-5
  Change it to:
  /sap/opu/odata/sap/YOUR_SERVICE?$top=10
  
  
  Review Application Logic: If you are developing or maintaining the application, review the logic that constructs the OData requests to ensure that it correctly handles pagination parameters.
  
  
  Debugging: Use tools like the SAP Gateway Client or browser developer tools to inspect the actual requests being sent to the server. This can help identify if the parameters are being set correctly.
  
  
  Check Service Configuration: If you have access to the backend, check the configuration of the OData service in transaction /IWFND/MAINT_SERVICE to ensure it is correctly set up and activated.
  
  
  Consult Documentation: Review the SAP documentation for the specific OData service you are using to ensure you are adhering to the expected parameter formats.
  
  
  Error Handling: Implement error handling in your application to catch such errors and provide user-friendly messages or fallback options.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  SAP Community: Engage with the SAP Community forums to see if others have encountered and resolved similar issues.
  OData Documentation: Familiarize yourself with OData standards and best practices, especially regarding pagination and query options.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to resolve it.