Create Connection in adtribute
Open the adtribute App.
Go to "Connections" and click on "Create Connection".
Search for "Hubspot" and select it.
Name the Connection as you like, e.g. the Account Name.
Now you need to get the API Key from Hubspot.
Retrieve API Key from Hubspot
Login to Hubspot.
Navigate to Settings (Gear Icon) at the top right.
Navigate to "Integrations" > "Private Apps" in the left sidebar.
Click the button "Create a private app" top right.
Name it "adtribute".
Go to "Scopes", click "Add new scope" and enable the following:
Click "Create app" top right and "Continue creating".
Now, click on show token and copy it (save it for yourself as well).
Complete Connection
After you have copied and pasted the API Key into the adtribute App, just click on "Next". It will load for a short bit and tell you on the bottom right if the Connection was successful and show up within your Connections.
You have to repeat those steps for every Hubspot account, you wish to connect.