@melissachowning
Hi Melissa,
it 100% is avaialable.. We’ve been using custom properties in quotes for a year now as otherwise we would have needed to integrate to a third-party contract solution.
You need to select the “Flow” quote template rather than the default HubSpot CMS template. You can then choose additional custom properties. See below:
If you see 3. above, they are all custom properties we’ve created.
Hope this helps!