How to Formatdate in an Alert with a loop and Null Condition along with a Calendar Invite

Summary:

We need to set New learning Assignment Resource Alert wherein loop condition is applied to display activityTitle and activityDate.

Evaluation is part of Activities. However, it is not associated with any date. Thus, in result it shows NULL in front of Evaluation.

We need to display ActivityDate in DD-MMM-YYYY format and remove NULL at the same time.

We tried putting formatDate condition on date. It works fine but doesn't execute with NULLIF condition.Also, addtoCalendarLink only puts a link and not a notification link or hyperlink to download .ics file.

Content (required):

How to put this code together for loop, NULLIF and CalendarLink.