How To Fix WEBDYNPRO_RT027 - You are already registered for changes in the browser history

SAP Error Message - Details

• Message type: E = Error

• Message class: WEBDYNPRO_RT - Message class of Web Dynpro runtime

• Message number: 027

• Message text: You are already registered for changes in the browser history

Self-Explanatory Message

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• What is the cause and solution for SAP error message WEBDYNPRO_RT027 - You are already registered for changes in the browser history ?

  SAP Error Message:
  WEBDYNPRO_RT027 – "You are already registered for changes in the browser history."
  
  Cause
  This error occurs in SAP Web Dynpro applications when the framework detects that the current user/session/browser is already registered for handling browser history changes (e.g., back/forward navigation events). Essentially, the Web Dynpro runtime tries to register the same user/session multiple times for browser history change events, which is not allowed.
  This situation can arise due to:
  
  Multiple registrations of the same Web Dynpro component or view for browser history changes.
  Incorrect handling of navigation or lifecycle methods in the Web Dynpro application.
  Custom code or enhancements that explicitly register for browser history changes multiple times without proper checks.
  Browser or session issues causing the runtime to misinterpret the registration state.
  
  
  Explanation
  SAP Web Dynpro supports browser history management to allow users to navigate back and forth using the browser buttons without losing the application state. To achieve this, the framework registers components or views