You can filter an automation based on the following criteria:
- A subscriber's tags
- A subscriber's metadata
- A subscriber's type
- The URL that a subscriber clicked on (for click triggers)
- The answer to a survey question (for survey triggers)
- A subscriber's paid subscription price
- A subscriber's email address
- The number of clicks or opens a subscriber has had. (Note that this is the total number of clicks or opens a subscriber has had, not the number of clicks or opens for a specific email.)
- The date at which a subscriber confirmed their subscription
Note that filters are evaluated at the time that the trigger fires. All actions in the automation share the same filter --- if the filter passes, every action in the sequence will run (each at its own scheduled timing).