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KDP help center

KDP help: the questions authors ask most, answered in one place.

We analyzed 250,000+ questions from the KDP community and grouped them into the topics below. Each answer links to a free tool or guide that fixes the problem.

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Organized by the topics authors actually ask aboutEvery answer links to a free toolBased on 250,000+ real KDP community questions

Uploads and error messages

Upload failures are the single biggest blocking topic in the KDP community. Most have a named cause: file size, fonts, margins, or metadata.

Covers and formatting

Cover blur, wrong dimensions, and bleed mistakes lead the formatting questions. The cover calculator and preflight checks catch them before upload.

Royalties and payments

When does KDP pay? Where is the money? These are the most repeated payment questions, and the answers are calendar and settings, not lost sales.

Accounts and verification

Identity verification and account termination are the fastest-growing account topics. The guides cover prevention and appeals.

Reviews and policies

Reviews disappearing and removal rules are constant questions. Most have fixed policy answers.

Sales and marketing

Zero sales, no ranking, and promotion confusion dominate the marketing threads. The diagnoser and promotion guides turn them into action.

Next release checks

KDP troubleshooting

Fix KDP upload errors by decoding the message.

Every KDP rejection names a specific defect. Decode it, fix that defect, and resubmit.Open check

KDP payments help

KDP payment schedule: why royalties arrive 60 days later, and how to trace a missing one.

Payment questions are among the most posted in the KDP community. Most missing payments are calendar, currency, or bank details, not lost sales.Open check

KDP account help

KDP identity verification: prepare the right documents and avoid the failures that stall release.

Since 2025 KDP verifies the identity behind a publishing account. A failed or stuck check is now one of the most common reasons books never go live.Open check

Free launch diagnoser

Find out why the book is not selling, then fix it in order.

"0 sales" is the most repeated launch complaint in the KDP community. The diagnoser scores the launch and returns the actions in the order they matter.Open check

FAQ

Frequently asked questions

Why did my manuscript upload fail?

The usual causes are file size, unembedded fonts, margins outside the safe area, or metadata that does not match. Paste the error into the rejection decoder for the specific fix.

When will I get paid for my sales?

Roughly 60 days after the end of the sales month, once your balance clears the payment threshold. See the payment schedule for the full calendar.

Why is my book not showing up in a marketplace?

Territory settings, per-market delays, or format restrictions. Re-save the pricing and territory step and allow 72 hours for indexing.

Why did my account get terminated?

Linked accounts, rights claims, content violations, or a missed identity verification are the common causes. The termination guide covers each and how to appeal.

Why are my reviews disappearing?

Amazon sweeps reviews that break its guidelines: friends and family, compensated reviews, and shipping complaints. Legitimate removals are usually a filter error you can report.

Why is my book not selling?

A searchable listing, a hooking sample, and traffic are the three basics. The launch diagnoser scores all seven launch areas and returns a 30-day plan.

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