Go to Menu → Marketing → Mass message, and then enter your message.
Here’s an example:
We haven’t seen you at Butterfly Studio in a while! Book today, and you will receive 10% off. Call us at (917) 478-3387 or book online https://www.appointfix.com/Butterfly-Studio.
Then tap on Recipients and select:
– Clients you haven’t seen in the last two months and who don’t have a future appointment (you can choose an interval in days, weeks, months, or years)