Begin of the insertion*As*End of the insertion Begin of the deletion **As**End of the deletion an OpenProject user Begin of the insertion
*I want*End of the insertion Begin of the deletion
**I want**End of the deletion to receive an email notification when the due date of a work package (or a custom field of type date) is approaching Begin of the insertion
*so that*End of the insertion Begin of the deletion
**so that**End of the deletion I do not forget important deadlines.

Begin of the insertion*UseEnd of the insertion Begin of the deletion **UseEnd of the deletion case Begin of the insertion(example)*

*End of the insertion Begin of the deletion (example)**

-End of the deletion A ticket of type bill or invoice has been created and needs to be paid. The user can easily forget to pay the bill if not reminded.

Begin of the insertion*Acceptance criteria*

*End of the insertion Begin of the deletion **Acceptance criteria**

-End of the deletion Timeframe for reminder should be configurable. Begin of the insertion
*End of the insertion Begin of the deletion
-End of the deletion Reminders should be sent for both end dates of work packages and custom fields of type date. Begin of the insertion
*End of the insertion Begin of the deletion
-End of the deletion For custom fields of type date it has to be possible to define whether a reminder should be sent (if a relevant end date is referenced) or not (e.g. when a start date is referenced).