Offboarding

Check for company specific procedures in IT Glue
Log into Microsoft 365 with the client's Netway admin credentials
Admin > Show All > Exchange > Mailboxes
Search for the user
Convert to Shared Mailbox from Regular Type / User Mailbox
Go back to Exchange Admin Centre > Users > Active Users
Search for the user 
Check the sync status
Synced from on premises means they have hybrid AD (one way sync), changes must be made on the ad server
log on to the ad server
disable the account
wait 30 minutes or perform a manual AD sync via PowerShell as admin Start-ADSyncSyncCycle -PolicyType Delta (AD Sync may be installed on another server)
verify sign in disabled in 365 tenant
in cloud means 365 only
Licenses and Apps > Remove licenses (unless inherited from a parent group)
Log into Converge and deduct 1 license quantity
Screenshots to cover yourself
if required, disable VPN account via sonic wall 
log in
device (top) > users (left) > Local users and groups
Search for the user > Delete the user
Shared mailboxes are free permanently
We convert the mailbox to a shared mailbox before removing the license, otherwise the mailbox data will be delete