Knowledge Article Expiry notification

[SM123]

Hello,

The requirement is to send a notification to ownership group members (if present) , else to knowledge managers. First reminder will be sent 30 days before expiry, second reminder will be sent 15 days before, 3rd email at 7 days, and last email at 1 day. i have written a schedule job but it is not running as expected. Kindly help me through it. I have attached the screen shots. 

[Mark Manders]

I would move away from the job because of all the necessary scripting and calculating. If you create a flow with wait conditions, you can send the email, wait, check if the date is still the same, send email, wait, etc.