When you send a proposal to a client, not only do they have the ability to review, accept and sign your terms, but they can also add add-ons to the booking.
To restrict the booking to only what you have included in the proposal:
Click Manage Booking
Select Edit Proposal Settings
3. Scroll down to the question "Should the customer be able to add and remove add-ons before accepting the proposal?"
4. Select No
By default, clients will have the option to choose Add-ons from within the proposal.
With the selection set to No, they will not be able to choose any add-ons:
