Choice quota guide

Google Forms session capacity and choice quotas

When each workshop, appointment slot, meal choice, or session has its own capacity, a total form response cap is not enough. FormGuard can manage simple choice quotas so filled options are replaced when they reach capacity.

Install from Marketplace Open choice limiter guide

When choice quotas help

Use choice quotas when users pick from a list and each option has its own limit.

Workshops

Each session has a different room capacity.

Appointment slots

Each time window can accept a limited number of people.

Volunteer roles

Each role needs a fixed number of signups.

Simple inventory choices

Each option maps to one quota, such as a meal, shirt size, or ticket type.

Set up session quotas

Create the question that contains your sessions, slots, or limited options.
Open FormGuard from the Google Forms add-ons menu.
Turn on choice eliminator.
Set the quota for each option you want to control.
Save settings and test the form with a copy before sending it to a live audience.

For event registration, test one session first. Confirm that the option changes as expected when its quota is reached.

What this does not replace

Quantity-aware inventory

If one response can reserve three units of the same item, a simple choice quota may not be enough.

Payment inventory

FormGuard does not synchronize payment status or reserve paid tickets.

Complex waitlists

If every full session should trigger a custom waitlist flow, plan that separately.

Admin-disabled add-ons

If your Workspace admin disables add-ons, FormGuard cannot bypass that policy.

Combine with form-level controls

A session quota can run alongside a total response cap or a scheduled close time. That lets one form stop when the overall event is full, while also removing individual sessions as they fill.

Close after N responses Schedule open and close times FormLimiter alternative

FormGuard is free of charge during public launch while real-world feedback is collected.