Calculating data using custom object fields
Is there a way to use two fields in a custom object to calculate a third field? For example, I have two fields on my custom object - one for the date a trip begins, and another for the number of days a trip lasts. Can I somehow calculate the date a trip ends? Webhook or something?
The trip end date doesn't necessarily need to be an additional custom object field, it could be calculated elsewhere - just in a way that I could use a smart campaign filter or trigger to send emails (e.g., "welcome home from your trip!") based off that data.