How To Fix /UI5/DTA028 - Mandatory URL parameter 'package' missing

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI5/DTA -

• Message number: 028

• Message text: Mandatory URL parameter 'package' missing

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI5/DTA028 - Mandatory URL parameter 'package' missing ?

  The SAP error message /UI5/DTA028 Mandatory URL parameter 'package' missing typically occurs in the context of SAP Fiori applications or SAPUI5 applications when a required URL parameter is not provided in the request. This error indicates that the application is expecting a parameter named package, which is essential for processing the request.
  Cause:
  
  Missing Parameter: The most common cause is that the URL being accessed does not include the package parameter. This can happen if the application is not correctly configured or if the URL is manually constructed without including all necessary parameters.
  Incorrect Routing: If the application is using routing, the route may not be correctly defined to include the package parameter.
  Application Configuration: The application might not be properly set up to handle the required parameters, leading to this error when the application is invoked.
  
  Solution:
  
  
  Check the URL: Ensure that the URL you are using to access the application includes the package parameter. The URL should look something like this:
  /sap/bc/ui5_ui5/sap/your_app_name?package=your_package_name
  Make sure to replace your_app_name and your_package_name with the actual names used in your application.
  
  
  Review Application Configuration: Check the configuration files (like manifest.json) of your SAPUI5 application to ensure that the routing and parameters are correctly defined.
  
  
  Debugging: Use browser developer tools to inspect the network requests and see if the package parameter is being sent. If not, trace back to where the URL is generated in your application code.
  
  
  Consult Documentation: Refer to the SAP documentation for the specific application or component you are working with to understand the required parameters and their expected values.
  
  
  Check for Updates: Ensure that your SAP system and UI5 libraries are up to date, as sometimes bugs in earlier versions can lead to such issues.
  
  
  Related Information:
  
  SAP Fiori and SAPUI5 Documentation: Review the official SAP documentation for guidelines on URL parameters and application configuration.
  SAP Community: Engage with the SAP Community forums to see if others have encountered similar issues and what solutions they found.
  Debugging Tools: Utilize SAP Web IDE or Business Application Studio for debugging and testing your applications.
  
  By following these steps, you should be able to resolve the error related to the missing package parameter in your SAP application.