How To Fix PG455 - Changing & without generating code can lead to inconsistencies

SAP Error Message - Details

• Message type: E = Error

• Message class: PG - Error Messages for Master Data Programs

• Message number: 455

• Message text: Changing & without generating code can lead to inconsistencies

What causes this issue?

If the PS structure is changed by adding, deleting, or changing fields,
then this change must also be reflected in the associated screen
structure. As the PS structure is not included here, but rather is
copied, the screen structure must be edited accordingly.

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?

If you have not yet made any changes to the screen structure, simply
choose "Generate Code". The screen structure is then deleted and created
again as a copy of the new PS structure. The other objects of the
infotype remain unchanged.
If the screen structure no longer corresponds to the (relevant part of
the) PS structure, perhaps because you have included new fields, you
must modify the screen structure manually on the "Screen Structure" tab
page using "Edit".

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 PG455 - Changing & without generating code can lead to inconsistencies ?

  The SAP error message PG455, which states "Changing & without generating code can lead to inconsistencies," typically occurs in the context of ABAP programming and the use of the SAP development environment. This message is a warning that indicates that changes have been made to a program or object without generating the corresponding code, which can lead to inconsistencies in the application.
  Cause:
  
  Modification Without Activation: The most common cause of this error is that a developer has made changes to a program, function module, or class but has not activated (generated) the code after making those changes.
  Inconsistent State: The system detects that the object is in an inconsistent state because the changes are not reflected in the generated code, which can lead to runtime errors or unexpected behavior.
  Development Environment Issues: Sometimes, this can also occur due to issues in the development environment, such as not having the necessary authorizations to activate the changes.
  
  Solution:
  
  
  Activate the Object: The primary solution is to activate the object that has been modified. This can be done by:
  
  Opening the object in the ABAP Workbench (SE80 or SE38).
  Selecting the "Activate" option (or pressing the appropriate function key).
  Ensuring that all changes are saved and activated properly.
  
  
  
  Check for Dependencies: If the object has dependencies (like other programs, function modules, or classes), ensure that all related objects are also activated to maintain consistency.
  
  
  Review Changes: If the error persists, review the changes made to ensure that they are correct and do not conflict with existing code.
  
  
  Transport Requests: If the changes are part of a transport request, ensure that the transport is released and imported correctly into the target system.
  
  
  Consult Documentation: If you are unsure about the changes made, consult the documentation or comments within the code to understand the purpose of the modifications.
  
  
  Related Information:
  
  Development Guidelines: Follow SAP's best practices for development, including proper version control and documentation of changes.
  Transport Management: Understand the transport management system (TMS) in SAP to manage changes across different environments (development, quality assurance, production).
  Debugging: If you encounter issues after activation, consider using the debugger (transaction SE80 or SE37) to trace the execution and identify any runtime errors.
  SAP Notes: Check SAP Notes for any known issues related to the specific version of SAP you are using, as there may be patches or updates that address similar issues.
  
  By following these steps, you should be able to resolve the PG455 error and ensure that your SAP objects are consistent and functioning correctly.