How To Fix CX_WDK_CONTROLLER400 - Make an entry in all required fields

SAP Error Message - Details

• Message type: E = Error

• Message class: CX_WDK_CONTROLLER - FP/BE/BDC Controller Messages

• Message number: 400

• Message text: Make an entry in all required fields

What causes this issue?

You have attempted to update data or start an action. However, not all
required information was specified.

System Response

The system could not execute the action.

How to fix this error?

Enter all required information. Fields in which you must enter data are
marked with a red asterisk by the system. If the current screen contains
tabs, check all tabs to make sure you have filled in all required
fields. Then restart the action.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CX_WDK_CONTROLLER400 - Make an entry in all required fields ?

  The SAP error message CX_WDK_CONTROLLER400 with the description "Make an entry in all required fields" typically occurs in the context of SAP Web Dynpro applications. This error indicates that the user has not filled in all the mandatory fields in a form or screen before attempting to save or submit the data.
  Cause:
  
  Missing Required Fields: The most common cause is that one or more required fields in the form are left empty. These fields are usually marked with an asterisk (*) or highlighted in some way to indicate that they must be filled out.
  Validation Rules: There may be specific validation rules set up in the application that require certain fields to be filled based on the context of the data being entered.
  User Input Error: The user may have overlooked a field or misunderstood which fields are required.
  
  Solution:
  
  Identify Required Fields: Review the form and identify all fields marked as required. Ensure that you have filled in all of these fields.
  Check for Hidden Fields: Sometimes, fields may be conditionally displayed based on other inputs. Make sure that you have filled in any fields that may have become visible based on your selections.
  Review Error Messages: If the application provides additional error messages or highlights specific fields, pay attention to these cues to identify what is missing.
  Consult Documentation: If available, refer to the user manual or help documentation for the specific Web Dynpro application you are using to understand the required fields better.
  Contact Support: If you are unable to resolve the issue after checking all fields, consider reaching out to your SAP support team or system administrator for assistance.
  
  Related Information:
  
  Web Dynpro Framework: This error is specific to the Web Dynpro framework used in SAP for developing web applications. Understanding how Web Dynpro handles data binding and validation can be helpful.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. Sometimes, there may be updates or fixes provided by SAP.
  User Training: Ensure that users are adequately trained on the application to minimize input errors and improve data entry accuracy.
  
  By following these steps, you should be able to resolve the CX_WDK_CONTROLLER400 error and successfully submit your data in the SAP application.