You published multiple formats of the same book but they aren’t showing together on the Amazon detail page. This is caused by differences in the details that you entered for each format.
Linking Amazon detail pages of eBook, paperback, and hardcover books provides the ideal browsing experience for customers. If you have an eBook, paperback, and hardcover with the same metadata and it matches completely, their detail pages should link automatically a week after each edition is live.

Amazon attempts to link book's formats based on the following details matching:

• Title
• Subtitle
• Author
• Contributor
• Series
• Language
• Edition
• Volume
• Interior type (B&W or color) for paperback and hardcover

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If the detail pages are not linked, verify if:

• All formats match: Confirm that all the details listed above match between all the formats you've chosen (eBook, paperback, hardcover).
• Timelines are complete: The linking process usually takes up to 1 week after each edition is live. Visit our Help page for details on timelines.
• Author Central account: If you have an Author Central account, you can claim your books through your Author Page. After you claim your books and the book details match (including author name and title), linking happens automatically.

Contact us if the detail pages still aren't linked after these checks. Provide the ASIN of the eBook and the 10-digit ISBN number of the paperback or hardcover.

Important: Detail page linking can be done only if the metadata matches, all formats are published through KDP, and under the same account.