Record The Basics
A useful metadata sheet includes title, subtitle, author or brand, description, trim size, paper type, bleed setting, page count, and cover finish.
It should also include suggested keywords and categories, with a reminder that those suggestions need human review.
Include Disclosures And Warnings
If any external artwork, user-provided text, or AI-generated material is used, the metadata notes should make that review visible.
A good helper sheet does not promise acceptance. It helps organize the upload review.