In order for Alight Analytics to have access to your Marketo account, you'll need to connect in the Connect Page of ChannelMix Control Center.
Prior to being able to use this service, you will need to provide Alight Analytics with a client id, client secret, and their Munchkin ID. These can be entered into the Marketo connection within ChannelMix. Details for finding the client id and client secret can be found under the "Creating an Access Token" section of this link. You do not need create a token, you only need to provide the client id and secret. The flow will not break if you provide us with an access token, it's just not required.