Create Connection in adtribute
Open the adtribute App.
Go to "Connections" and click on "Create Connection".
Search for "Calendly" and select it.
Name the Connection as you like, e.g. the Account Name.
Now you need to get the API Key from Calendly.
Retrieve API Key from Calendly
Important: It is necessary that and Admin User does this integration, so that we receive events for every calendar from your Calendly organisation through the API and not only the personal one of the user:
Login to Calendly.
Navigate to "Integrations & apps".
Search for API and select "API and webhooks".
Either click "Get a token now" or "Generate New Token" (depends on if it is your first token).
Name the token "adtribute".
You have to confirm the creation with an Email code.
After that you can copy the code by clicking on the button (save it for yourself as you will not be able to see it again).
Fill in the copied Token into the "Access Token" field in the adtribute app.
Complete Connection
After you have pasted the Access Token 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.