How To Fix TK255 - Save changes first

TK255 - Overview

• Message type: E = Error

• Message class: TK - Transport Organizer

• Message number: 255

• Message text: Save changes first

What causes this issue?

Changes have already been made. The function you selected is only
possible when no changes have been made yet. Otherwise, changes that
have been made could be lost.

System Response

The function was not performed.

How to fix this error?

First save your changes, then call the required function again.

Error message extract from SAP system. Copyright SAP SE.

TK255 - Details

• The SAP error message TK255 "Save changes first" typically occurs when a user attempts to perform an action that requires the current changes to be saved before proceeding. This can happen in various contexts, such as when working with transactions, customizing settings, or maintaining master data.
  
  Cause:
  
  Unsaved Changes: The most common cause of this error is that there are unsaved changes in the current session. SAP requires that all changes be saved before moving on to another task or transaction.
  Transaction Flow: Some transactions in SAP have a specific flow that must be followed. If you try to skip steps or navigate away from a screen with unsaved data, you may encounter this error.
  User Permissions: In some cases, user permissions or roles may restrict certain actions until prior changes are saved.
  
  
  Solution:
  
  Save Changes: The immediate solution is to save any changes you have made. You can do this by clicking the "Save" button