How to build a meeting scheduler in Bubble

The simplest valid way to build a meeting scheduler in Bubble is: create a Time Slot data type, let a user generate available slots (each slot has a start time, end time, and a “booked” flag), show only unbooked slots in a repeating group, and when another user clicks a slot, run a workflow that marks it as booked and saves who booked it. This alone gives you a reliable scheduler without plugins.

Data structure

Create two types:

• User (default). Add fields: “role” (text), “timezone” (text).
• Time Slot with fields:
  • start (date)
  • end (date)
  • owner (User)
  • booked\_by (User, empty by default)

Creating availability

You usually place a date/time picker and a button “Add availability”. On click:

• Run workflow: Create a new Time Slot
• Set “start” to the picker start value
• Set “end” to the picker end value
• Set “owner” to Current User

If you want multiple slots (e.g., 30‑min blocks), use a backend workflow that receives a start and end date and creates several Time Slot items in a loop using Schedule API Workflow.

Displaying available slots

Use a Repeating Group with Type = Time Slot. Data source:

• Do a search for Time Slots
• Constraint: owner = the person whose calendar you’re showing
• Constraint: booked\_by is empty

Inside the RG cell, show formatted dates using “start:formatted as” to respect the viewer’s timezone.

Booking a slot

Add a button inside the cell. Workflow:

• Make changes to thing = Current cell’s Time Slot
• Set “booked\_by” = Current User

Because Bubble updates a single record atomically, this prevents double bookings unless two users click at the same moment; if needed, add a Condition “Only when booked\_by is empty”.

// Example of safe condition in workflow
Only when This Time Slot's booked_by is empty

Optional: confirmations and reminders

• Send email using Bubble’s built‑in “Send email”.
• To send SMS, set up API Connector with Twilio and call it in the same booking workflow.
• For reminders, use a backend workflow and “Schedule API workflow” for start‑(X) minutes.