OAuth seems to disconnect all channels (linked email groups in Front) every 6 months. Each channel will need to be reauthorized individually if users report the following error. 



To reauthorize each channel:


1. Login to https://app.frontapp.com/signin using Landon's Front login (login credentials in Front folder in Keepass)


2. Click on the gear Icon in the middle left of the screen, toggle which company you want to reauthorize channels for at the top left (usually you will need to do all - accounting, IT, LTD/LOG, LTL), then click on Channels.



3. Click on "Other email account" under my channels



4. Click on the email channel that you want to reauthorize, once inside the channel, click on settings, click "modify" under "send outbound messages"



5. Click "Re-authorize" under the Office365 OAuth2. This will bring up a Windows sign-in box. Use the frontemailsystem username and password (located in the front folder in Keepass) to sign into the windows login. Make sure to use that login to authorize as your login will also pop up if you are signed in. 



6. After signing in, it will return you to the "Re-authorization" page. Click save in the bottom right.


7. You will need to repeat these steps for each and every channel under each company.