Is it possible to trigger a flow when a person/group field is updated?
I'd like to send an email to the new person when a person field in a sharepoint list is updated to a new value.
Neither SharePoint or Flow natively support checking for a change in a singe column. However, there are a number of ways to achieve your goal.
I documented one way to check for a change in a column in this blog post. It uses a SharePoint API call but I walk you through exactly what you need to do. Please note that the SharePoint HTTP connector IS NOT a premium connector.