Choose Read for reporting and Write for uploading invoices or changing data. Only choose
Admin if the integration manages the organization itself.
A key never has more access than you do. Organization members can use at most Write; only
organization admins can use Admin. For example, an Admin key used in an organization where you
are a member works as a Write key there.
If a key’s level is too low for a request, the API answers
403. See
authentication and API keys to create or change a key.