For clients who prefer to watch videos for the process of determining who has a required attachment and how to fix those which should be optional, view the following:
How to Export Items and Review Optional vs Required Items as well as Unlisted Items
Manage Attachments and Change Optional or Required attachments.
Review the required attachments in the Manage Attachments window. Students with an "*" beside their name, this indicates the student has paid.
NOTE: If the item has a Limit Per Student set to Unlimited, best practice would be to change the Required attachment to an attachment of Optional.
For clients who prefer to read through instructions, view the following articles:
Change Required Attachment to Optional Status Selection
Edit an Attachment - Change from ‘Required’ to ‘Optional’