Confirm the manuscript and cover versions, ISBNs, descriptions, keywords, categories and price for each format. Check the proof, verify links and ensure the author biography and contact information are current. Assign a person to each item and mark what is complete.
Leave time for platform review and unexpected corrections. Keep a copy of the approved upload files and note the intended publication date. A checklist cannot guarantee a sales result, but it can reduce preventable errors and let the author focus on readers.