As an Informational Page: Since the custom stages don't have buttons, questions, or other action items, this blank page is ideal for showing a larger amount of information such as company policies, and embed videos or Javascript to build rapport with the applicant or tell the applicant more about the job/requirements. Instead of cluttering up the Data Collection stage with instructions on what kind of documents to upload, consider placing that in a custom stage before the Data Collection stage to keep it clean.

If you choose to use Custom Stage as an informational page, consider adding an Advance URL, so the applicant can still continue with the rest of the process and move to the next stage.

As an Internal Stage: Custom stages can also be used for an internal process where the applicant needs to stop in a stage to wait for approval or review. Think of it as building a dam to stop the (work)flow of the river. Simply place a Custom stage after the last stage the applicant is expected to complete an action. In this case, you do not want to add an Advance URL in the Applicant Portal, but you should still place a message informing the applicant that they have completed the application and what to expect next.