For example
- Only trigger to returning visitors (ex : more than X visits but/and/or less than Y visits).
- Only tigger to visitors which specific devices/browser (ex : I don't want to invite visitors from iPhone/Android devices as they rarely accept to chat).
- Only trigger to visitors from specific regions/cities (ex : if I am doing a local campaign I only want to reach specifc visitors from this area).
- Only trigger if the visitors have visited the X, Y, Z,.... pages during his current/previous sessions.