On Collect side, you need a pro plan and above to have access to the HubSpot integration.
If you are creating your account by coming from HubSpot App Marketplace, you should be prompted during the onboarding process to connect HubSpot to Collect.
Open a record (Collect works in Contact, Company, Deal and Ticket) and select “Send a request”
When your client makes changes on their portal and submit for validation, the status …
For each type of object (Collect works with Contacts, Companies, Deals and Tickets), you can decide which properties can be synced with Collect.
You can use HubSpot properties for two things.
It means that you don’t have (yet) an account in Collect.
If you want to uninstall Collect from HubSpot.