**As** a user being notified via reminder email
**I want to** have an informative message on why a deleted work package does not exist if I clicked on it in the reminder mail
**so that** I am not confused

**Scenario**

* The first user creates a work package and mentions a user/assigns a user .... leading to a notification being created for the second user
* That second user does not read the notification in app leading to it being included in the reminder mail
* The first user deletes the work package leading to the notification being removed
* The second user clicks on the link in the reminder mail

**Notes**

This can easily be tested by using the following url: [https://community.openproject.org/notifications/details/0](https://community.openproject.org/notifications/details/0)

<figure class="image op-uc-figure"><div class="op-uc-figure--content"><img class="op-uc-image" src="/api/v3/attachments/22337/content"></div></figure>

**Acceptance criteria**

* If the user clicks on a work package that has been deleted since the time the notification was triggered, they are Begin of the insertiontakenEnd of the insertion Begin of the deletion directedEnd of the deletion to the Begin of the insertionnotification center (without the split screen). _(Note: once the_ [_empty state_](https://community.openproject.org/projects/openproject/work_packages/38610/activity)_s are implemented in Notification CEnter, they will be redirected to the notification center an empty split screen instead)._
* In the user tries to open the the split screen of a deleted project from a list (that has yet to take that deletion into account), the user is taken to the workEnd of the insertion Begin of the deletion parent view (workEnd of the deletion package Begin of the insertionlistEnd of the insertion Begin of the deletion table viewEnd of the deletion of the project in Begin of the insertionquestion, without the split-screen.
* The message in theEnd of the insertion Begin of the deletion question) with aEnd of the deletion red error Begin of the deletion messageEnd of the deletion snack bar Begin of the insertionin either case should be  &quot;_TheEnd of the insertion Begin of the deletion with this text: &quot;_TheEnd of the deletion work package you are looking for does not exist or has been deleted_&quot;.