You can add all of your HubSpot contacts or a specific list of contacts to your referral program and issue them with their own unique referral links.
You can then automatically add their referral link to the contact information in HubSpot. That means each of your HubSpot contacts will now have a referral link!
This will allow you to use your existing workflows to encourage contacts to refer their friends. To add your contacts to your referral campaign follow the steps below:
1. Navigate to the "Promote your campaign" tab of your campaign builder and click on the "Generate referral links for your CRM contacts" button.
2. Select if you wish to sync all of your HubSpot contacts to the campaign or a specific list of contacts.

Please note: If you select "Sync from specific list" you will need to choose which list you want to sync with from the drop-down menu.
3. Click the "Next" button to continue.
4. Choose to toggle on if you want the function continues to add your contacts from HubSpot. Click "Save".
Your contacts will now. be added to your referral campaign and their referral link will be added to the property field that you chose during your setup.