At which point can a user create an Adobe ID to connect to the Marketing Cloud?

Creating an Adobe ID after receiving a Marketing Cloud invitation but before accepting it is correct because the invitation process is designed to guide users in establishing their identity within the Marketing Cloud environment. Upon receiving an invitation, users have the opportunity to register for an Adobe ID, which serves as the credential to access various Adobe services, including the Marketing Cloud. This step enables users to seamlessly link their new Adobe ID to the invitation, ensuring that they can fully utilize the features of the Marketing Cloud once they accept the invitation.

This process also facilitates a fluid onboarding experience, allowing the user to set up their account information and preferences prior to the actual acceptance, ensuring that they are prepared to engage with the platform immediately after they complete the acceptance step.