If a user has not completed the onboarding process, what is a possible solution?

Providing prompts for incomplete onboarding is an effective solution because it directly addresses the user's status and encourages them to complete the necessary steps. By reminding users of what they still need to do, you can enhance their experience and guide them through the onboarding process. This approach helps to engage users without overwhelming them or pushing them away.

In contrast, notifying them about account deactivation might create anxiety or lead to users abandoning the process altogether. Forcing a new registration can be frustrating and may disrupt the user experience, leading to dissatisfaction. Automatically creating a default account can result in users having an experience that doesn't accurately reflect their preferences or needs, which may hinder engagement and ensure they are not using the platform effectively. Therefore, prompting users about what remains to be completed is the most constructive and user-friendly approach.