How do I make sure that I don't order costumes for students who dropped after they were auto-sized?

When a student drops after costumes have been assigned to classes and sized, Jackrabbit does not change their costume status to Do Not Order. Prior to creating orders, we recommend you run Reports > Drop History and mark dropped students as Do Not Order when needed.

Note also, that when a student drops (or is a future drop) Jackrabbit color codes the Class Costume Size Entry page for visual assistance.