I have a contracts library.
In that library I want to track the contracts and send notifications to Contract owners 30 days before the Due date as a reminder that they need to take action.
What would I need to do in order to trigger the workflow to start and what would I need to do for the workflow to calculate the date correct?
Flow is not an option. Coding in c# or java is not an option. Document retention Policy is not an option.
Only OOTB SharePoint Designer solutions please.