How To Fix W3_API302 - Dynpro names can contain only digits

SAP Error Message - Details

• Message type: E = Error

• Message class: W3_API - WAB: API Messages

• Message number: 302

• Message text: Dynpro names can contain only digits

Self-Explanatory Message

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• What is the cause and solution for SAP error message W3_API302 - Dynpro names can contain only digits ?

  SAP Error Message:
  
  W3_API302 Dynpro names can contain only digits
  
  Cause:
  This error occurs when a Dynpro (screen) name contains characters other than digits. In SAP Web Dynpro ABAP, screen (dynpro) names are expected to be numeric only. If the system encounters a dynpro name with alphabetic or special characters, it raises this error.
  Typically, this happens during:
  
  Web Dynpro application development or runtime when the system tries to reference a dynpro name.
  Transport or import of Web Dynpro components where dynpro names are incorrectly defined.
  Custom coding or manual changes where dynpro names are assigned or manipulated incorrectly.
  
  
  Explanation:
  
  Dynpro names in Web Dynpro ABAP are numeric strings (e.g., "0100", "0200").
  The system validates these names to ensure they contain only digits.
  If a dynpro name contains letters or other characters, the system throws the W3_API302 error.
  
  
  Solution:
  
  
  Check Dynpro Names:
  
  Review the dynpro names in your Web Dynpro component.
  Ensure all dynpro names are numeric only (e.g., "0100", "0200").
  
  
  
  Correct Naming in Development:
  
  In the Web Dynpro Component or View, rename any dynpro names that contain non-digit characters.
  Use the Web Dynpro Explorer or SE80 to inspect and correct dynpro names.
  
  
  
  Check Custom Code:
  
  If dynpro names are assigned or manipulated in custom code, ensure the code only uses numeric strings.
  Avoid hardcoding or dynamically generating dynpro names with non-digit characters.
  
  
  
  Transport/Import Issues:
  
  If the error occurs during transport or import, verify the transport request for any corrupted or incorrect dynpro names.
  Re-import or correct the transport if necessary.
  
  
  
  Regenerate or Rebuild:
  
  After correcting dynpro names, regenerate or rebuild the Web Dynpro component to ensure consistency.
  
  
  
  
  Additional Information:
  
  Message Class: W3_API
  Message Number: 302
  This message is part of the Web Dynpro API validation.
  Dynpro names are critical identifiers for screens in Web Dynpro applications; maintaining their format is essential for proper navigation and rendering.
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Dynpro name contains non-digit characters
  
  
  Effect
  System throws error W3_API302
  
  
  Solution
  Rename dynpro names to numeric-only strings
  
  
  Check
  Web Dynpro component, custom code, transports
  
  
  
  
  If you continue to face issues after correcting dynpro names, consider checking SAP Notes or contacting SAP Support with details of your Web Dynpro component and the exact scenario triggering the error.