When we set up the appointment reminder campaign, please be sure to add a wait step for a minute in order for us to process the location value if you are using Zoom integration.
Click on Add New Workflow Trigger #

Click on Select #

Click on Appointment… #

Click on Add filters #

Click on Select #

Click on Appointment status is #
#
Click on Select #

Click on confirmed #

Save Trigger #

Click on + #

Scroll down to the bottom and click on Wait #

Set Wait Delay for 1 minute #

Save Action and continue to build the rest of the appointment reminder workflow #
Click on + after the wait step

Choose to send Email/SMS to send the appointment confirmation to the lead

Click here to value the list of custom fields you can use for appointment workflow:
Click on Save action:

Click + to add another step:

Scroll down to the bottom and click on Wait #

Click on Time Delay

Click on Event / Appointment time

If you want to send a reminder before 4 days:
Type 4 here

Switch minutes to days

Select Skip all outbound communication actions, till next wait or Event Start Date action.

Click on + after the wait step

Choose to send Email/SMS to send the appointment reminders to the lead

You can continue to add another wait step for another appointment reminder message to go out