How To Fix WZ351 - Method &1 of object type &2 cannot be executed using forms

SAP Error Message - Details

• Message type: E = Error

• Message class: WZ - Workflow: Model objects

• Message number: 351

• Message text: Method &1 of object type &2 cannot be executed using forms

What causes this issue?

A method can only be executed using a PC form (SAP Form) if it was
inherited from method 'process' of object type 'FORM'. This is not the
case, however, for method &v1& of object type &v2&.

System Response

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

How to fix this error?

Use another method or object type.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WZ351 - Method &1 of object type &2 cannot be executed using forms ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  WZ351 Method &1 of object type &2 cannot be executed using forms
  
  Cause:
  This error occurs when a method of an object type is called or triggered within a SAPscript form or Smart Form, but the method is not designed or allowed to be executed in the context of forms. In other words, the method you are trying to use is not supported or cannot be processed during the form processing runtime.
  Typically, this happens because:
  
  The method is intended for use in ABAP programs or classes but not in form processing.
  The method might perform operations that are not allowed or feasible during form generation (e.g., database commits, dialog calls, or other runtime-restricted operations).
  The method is not implemented or registered for use in the form environment.
  
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check the method usage:
  
  Verify if the method you are calling is intended to be used in forms.
  Review the documentation of the method to confirm if it supports execution in SAPscript or Smart Forms.
  
  
  
  Avoid calling unsupported methods in forms:
  
  If the method is not supported, remove or replace the call within the form.
  Instead, perform the required logic outside the form (e.g., in the driver program or in an ABAP class/method before calling the form).
  
  
  
  Use alternative approaches:
  
  If you need to perform certain logic or data retrieval, do it before the form is called and pass the results as parameters to the form.
  Use function modules or methods that are explicitly designed for use in forms.
  
  
  
  Check for custom code:
  
  If this is a custom method, ensure it is designed to be form-compatible.
  Avoid database commits, dialog calls, or other runtime-restricted operations inside methods called from forms.
  
  
  
  Debugging:
  
  Use the debugger to identify exactly where the method is called.
  Check the call stack and context to understand why the method is being executed in the form.
  
  
  
  
  Related Information:
  
  
  SAPscript and Smart Forms limitations:
  
  Forms have restrictions on what ABAP code can be executed during their processing. Methods that perform dialog or database commit operations are generally not allowed.
  
  
  Best practice:
  
  Perform all complex logic and data preparation outside the form and pass only the necessary data to the form for output.
  
  
  SAP Notes and Documentation:
  
  Check SAP Notes or the SAP Help Portal for any updates or specific notes related to the method or object type you are using.
  
  
  Example scenario:
  
  If you try to call a method that updates database tables or commits data inside a Smart Form, you will get this error because forms are meant for output generation, not transactional processing.
  
  
  
  If you provide the actual method name and object type (the values of &1 and &2), I can help you with more specific guidance.