AmazonKDP Error - We detected unusual activity and are unable to verify your mobile number
This video is a guide to troubleshooting and resolving this common error encountered by authors on the Amazon Kindle Direct Publishing (KDP) platform - "We detected unusual activity and are unable to verify your mobile number at this time. Please try again later".
By following the guidance in this video, you can:
Resume your publishing activities without interruption.
Maintain the security and integrity of your KDP account.
Enjoy a smoother and more efficient publishing experience on the Amazon Kindle platform.
UPDATE:
As of November 2025, Amazon has changed their KDP authentication system, and the method in this video may no longer work for most people.
We’ve posted a new updated video explaining the new solution and what you should do next.
Here’s the updated guide: [ • Amazon KDP Signup BLOCKED? Fix "Unusual Ac... ]
Amazon Kindle Publishing link - https://kdp.amazon.com/
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