Hello, 

I need to have a notification email for the expiration date in the system to renew the document or the file or even if this is related to the employee's Identification ID or Passport.

If you can help (in any module or explaining python code) I need to have more than one notification before a month of the expiration date then after 15 days then after 3 days and lastly before 24 hours and then if we didn't renew send an email saying that (this file had expired...).

Thanks in advance, 

Wishing to find a reply to my post.