How To Fix P0090 - Changes have been made in window &

P0090 - Overview

• Message type: E = Error

• Message class: P0 - Messages for Transactions PE01, PE02 and PE03

• Message number: 090

• Message text: Changes have been made in window &

What causes this issue?

The changes made when editing the window have been transferred to the
internal form table. When you choose Save, they are stored in the
database.

Error message extract from SAP system. Copyright SAP SE.

P0090 - Details

• The SAP error message P0090, which states "Changes have been made in window &," typically occurs when there are unsaved changes in a dialog window or screen in the SAP GUI. This message is a warning that indicates that the user is trying to navigate away from a screen or perform an action that would discard unsaved changes.
  
  Cause:
  
  Unsaved Changes: The most common cause of this error is that the user has made changes to fields in a screen but has not saved those changes before attempting to navigate away or execute another action.
  Multiple Sessions: If you have multiple sessions open and changes are made in one session, it can lead to confusion when trying to perform actions in another session.
  Dialog Navigation: Attempting to close a dialog or navigate to another transaction without saving changes.
  
  
  Solution:
  
  Save Changes: Before navigating away from the screen, ensure that you save any changes you have made.