How To Fix EZ451 - User exits exist although no exit include is specified

SAP Error Message - Details

• Message type: E = Error

• Message class: EZ - Print workbench

• Message number: 451

• Message text: User exits exist although no exit include is specified

What causes this issue?

You have named user exits in your application form, but you have not
specified an exit include.

System Response

The application form cannot be activated.

How to fix this error?

Enter a name for the exit include in the attributes of the application
form. Alternatively, delete all the user exits in the form levels.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EZ451 - User exits exist although no exit include is specified ?

  The SAP error message EZ451 indicates that there are user exits defined in the system, but the program or function module does not include the necessary exit include to utilize those exits. This can lead to confusion, as the system recognizes that user exits are available but cannot execute them because they are not properly included in the code.
  Cause:
  
  Missing Include Statement: The most common cause of this error is that the program or function module does not include the necessary exit include file where the user exits are defined.
  Incorrect Configuration: Sometimes, the configuration of the user exits may not be set up correctly, leading to this error.
  Development Errors: If a developer has created a custom program or modified an existing one without including the necessary user exit includes, this error can occur.
  
  Solution:
  
  
  Include the User Exit: 
  
  Identify the user exit that is relevant to your program or function module. This can usually be found in the documentation or by checking the SAP notes related to the specific user exit.
  Add the appropriate INCLUDE statement in your ABAP code to include the user exit. For example:
  INCLUDE <user_exit_include_name>.
  
  Make sure to activate the program after making changes.
  
  
  
  Check Configuration: 
  
  Review the configuration settings for the user exits to ensure they are set up correctly. This may involve checking transaction codes like SMOD (for enhancements) and CMOD (for projects) to see if the user exits are properly assigned.
  
  
  
  Consult Documentation: 
  
  Refer to SAP documentation or notes for specific guidance on the user exits you are working with. This can provide insights into how to properly implement them.
  
  
  
  Testing: 
  
  After making the necessary changes, test the program to ensure that the user exits are now being recognized and executed as expected.
  
  
  
  Related Information:
  
  User Exits: User exits are predefined points in SAP programs where you can add custom code without modifying the original program. They are part of the enhancement framework in SAP.
  Enhancement Framework: SAP provides various ways to enhance standard functionality, including user exits, BAdIs (Business Add-Ins), and enhancement spots.
  Transaction Codes:
  
  SMOD: To manage enhancements and user exits.
  CMOD: To create and manage enhancement projects.
  
  
  SAP Notes: Always check for relevant SAP Notes that may provide additional information or fixes related to specific user exits or enhancements.
  
  By following these steps, you should be able to resolve the EZ451 error and successfully utilize the user exits in your SAP environment.