Final answer:
To associate a campaign with a journey in Marketing Cloud, click Connect Campaign within Journey Builder.
Step-by-step explanation:
To associate a campaign with a journey, you should click Connect Campaign within Journey Builder in Marketing Cloud.
This function allows you to link the journey you are creating or modifying with an existing Salesforce campaign, enabling you to track the interaction of customers or prospects throughout the marketing campaign lifecycle. It's important to have the correct configuration and permissions in place to use this feature effectively.
In Journey Builder, you can set up activities that are triggered or associated with campaigns, allowing you to integrate your campaigns with customer journeys. Always refer to the specific interface and options available in your Marketing Cloud instance for the most accurate guidance.