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How to switch to the new Outlook Web App to use Lightning For Outlook

Knowledge Article Number 000213300
Description Lightning For Outlook (LFO) is not supported on the Light version of Outlook Web App (OWA) and you will need to switch to the new Outlook Web App (OWA) to get this app. 

OWA Light

User-added image


User-added image

Resolution To switch to the new OWA app, follow the below steps:
  1. In the light version, go to  Options | Outlook Web App version
  2. Clear the Use the light version of Outlook Web App check box.
  3. Choose Save.
  4. Sign out of the light version, close your browser, and sign in again using a supported browser. You may need to close all open browser windows before you can sign in again.
If you do not see the Options menu, please contact your email administrator for further assistance. 

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