In-App Calendars : Online Booking Reminder
iSlash AI’s In-App Calendar helps businesses manage appointments, availability, and customer bookings efficiently, directly connected to WhatsApp and other messaging channels.
For user guide to setup In-App Calendar, please visit this link.
Setup Conditions
An existing In-App Calendar.
For user guide to setup In-App Calendar, please visit this link.An approved Utility message as the appointment reminder message:
for example -預約提醒 Appointment Reminder
Hi {{1}}, this is a friendly reminder of your appointment with us.
提醒您已預約
📅⏰ {{2}}
If you need to reschedule or have any questions, please let us know in advance.
如需改期或有任何查詢,歡迎提前與我們聯絡。
期待到時見到您 😊
Step-by-step Guide
Start by clicking on the Setting button in Calendars:

Go to the desired WhatsApp Channel, scroll down to find "Online Booking Reminder Message" and click "Select":

In this pop-up window, select the approved Message Template:

Proceed to set the variables:

Once completed, click "Change" to save.

Next, at the top right corner, find the calendar menu and enter "Edit":

At the pop-up menu, scroll down to find "Send Reminder", toggle to enable.

Proceed to set the desired time to send reminder and click "Update".

Insights

Why WhatsApp Growth Feels Harder in 2026

From Phone Numbers to Usernames: WhatsApp’s Next Shift for Business Messaging

Holiday Season Marketing Playbook 2025/2026

Practical Ways to Execute Conversational AI

Business Growth Powered by the Customer Engagement Flywheel

Put Your Instagram on Autopilot: Engage, Reply & Convert Instantly!

From Chats to Communities: Turn Followers into a WhatsApp Community

The Essential Guide to WhatsApp Business API for Your Business