improveit 360 clients often would like the Appointment Time field to be required. Although you cannot change the Field Type to make it required, you can create a Validation Rule on the Appointment object to prevent saving an Appointment record without a Time selected.
Only System Administrator users are able to create Validation Rules.
Navigate to the Setup menu. Click on your Username in the upper-right corner of your improveit 360 page. Clicking on your Username will expose a dropdown menu. Here you will find the Setup menu:
From the Setup menu, use the Quick Find search bar and search the word Object.
Click on the Objects menu
Objects > Appointment
Hover over the Validation Rules related list and click New
There are two criteria to consider for this Validation Rule.
The first is the Start Time field cannot be left Blank.
The second is that the Appointment record is New. This allows Users to Edit/Save previously created Appointments without the Validation Rule being triggered.
Note the following criteria:
ISBLANK (TEXT(i360__Start_Time__c)) && ISNEW ()
Be sure to input an Error message Users will see when the Validation Rule is triggered. This error message should be User friendly and explain what to do in order to successfully save the record.