Sending email before inactive accounts get disabled and then deleted

Sending email before inactive accounts get disabled and then deleted

I'm new to setting up automation for disabling and deleting accounts in ADManager Plus
My managers have asked to automate the process for disabling inactive accounts at 90 days, but they want the users to be emailed 2 weeks (day 76 )and 1 week later (day 80) to let them know their accounts are getting disabled. Which is what I can't exactly figure out how to do what they're asking.
I thought about running a report inactive users for the last 76 days to somehow email the users,then use the same report 7 days later to email them again,
This is what I have come up as an automation policy
Accounts to be disabled after 90 days of inactivity (password reset) moved to a disabled accounts OU. Accounts are removed from all groups place (a tick in Clear all existing Group Memberships), hidden from Exchange GAL.


At 120 days (30 days of no activity) user  accounts are deleted, delete home folder, Disable/Delete Mailbox (Disable mailbox selected).Any suggestions help will be greatly appreciated.