Once you connected your HubSpot portal, you'll be directed to the integration settings tab.
On the left side, you have dropdowns to select any piece data you want to sync to HubSpot. You first select the field in Double then in the middle dropdown select the object you want to sync this information to, and then the third dropdown on the right will automatically populate all properties of that object.
Once you're done, you click save and that's it! Donations and data can now start flowing in 😃