The Hold System (During Checkout)

Used to prevent double bookings.

When does hold happen?

When user reaches the final step and clicks Add to cart → Create temporary hold.

Data sent:

• variantId

• staffId (or null for auto assign)

• startUtc

• endUtc

• customer info

• price

Hold expires (default 10 minutes).

If conflict → show message “Timeslot unavailable.”