How To Fix /UI5/APP_API125 - Validation of inline change failed

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/APP_API -

• Message number: 125

• Message text: Validation of inline change failed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/APP_API125 - Validation of inline change failed ?

  The SAP error message /UI5/APP_API125 Validation of inline change failed typically occurs in the context of SAP Fiori applications that utilize the UI5 framework for handling data binding and user interactions. This error indicates that an inline change made to a data model (such as a table or form) could not be validated successfully, which means that the data being submitted does not meet the required validation rules defined in the backend or the data model.
  Causes:
  
  
  Data Validation Errors: The data being submitted may not conform to the validation rules defined in the backend system. This could include:
  
  Missing required fields.
  Incorrect data types (e.g., trying to submit a string where a number is expected).
  Values that do not meet specific business logic or constraints (e.g., dates in the past, invalid codes).
  
  
  
  Model Binding Issues: There may be issues with how the data is bound to the UI5 model, leading to inconsistencies between the UI and the underlying data model.
  
  
  Backend Service Errors: The OData service that the UI5 application is trying to communicate with may have issues, such as:
  
  The service is not properly configured.
  The service is down or unreachable.
  The service does not support the operation being attempted.
  
  
  
  User Permissions: The user may not have the necessary permissions to perform the inline change, leading to validation failures.
  
  
  Solutions:
  
  
  Check Data Input: Ensure that all required fields are filled out correctly and that the data types match the expected formats. Validate the data against the backend requirements.
  
  
  Review OData Service: Check the OData service for any issues. You can use tools like the SAP Gateway Client or Postman to test the service independently and see if it returns the expected results.
  
  
  Debugging: Use the browser's developer tools to inspect the network requests being made by the UI5 application. Look for any error messages in the response from the OData service that might provide more context on the validation failure.
  
  
  Check Model Binding: Ensure that the data model is correctly bound to the UI elements. Look for any discrepancies in the binding paths or data types.
  
  
  User Authorization: Verify that the user has the necessary authorizations to perform the inline change. Check the roles and permissions assigned to the user in the SAP system.
  
  
  Consult Documentation: Review the documentation for the specific Fiori application or the OData service to understand any specific validation rules or constraints that may apply.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific Fiori application or OData service you are using.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  UI5 Documentation: Review the SAP UI5 documentation for best practices on data binding and handling inline changes.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.