We want to import our existing customers (who have registered on our site) into HubSpot so we can track our outreach with them. Some contacts at have registered with their company email, but many registered with a personal email (gmail, or yahoo or something) or others are contractors and have a different email address than the one we associate with their account. In other words, we may see this:
Account with Company ABC:
email@example.com firstname.lastname@example.org email@example.com firstname.lastname@example.org
Account with Company XYZ:
email@example.com firstname.lastname@example.org email@example.com
If we import from CSV, Company ABC would only have user1 and user 2 associated, but not users 3 and 4, and Company XYZ would have users 1 and 1, but lose user 3. Support said this might be possible via the API, but thought we might need a paid version of HubSpot Marketing in order to have access to the right API?
We do have SalesPro, but we do NOT have Marketing Pro, can we still use the API to import our contacts and use a custom field for our own AccountID to get our contacts associated to the right company (like above) regardless of email domain?
Thank you in advance, please let me know if I did not explain what I am trying to achieve clearly…