Sequence messaging is a marketing strategy that sends, or "drips," a pre-written set of messages to messenger bot subscribers over time. This feature can send 24H promo and non-promotional with tag message sequence to messenger bot subscribers. It uses BOT API for sending message. The subscribers will be assigned under your sequence campaign automatically based on their entry point (engagement plugins) or post-back click. However, you can also assign manually or change the campaign. 24H promo campaign can be set at 30 min, 1 hour to 23 hours and non-promotional campaign can be set at day 1 to day 30.