Hello @Seller_4Q8fHy394V9bw,

Thanks for your patience. You can upload your user manual guide on your listing by using the information available in the About product documents guide. It includes instructions to upload product documents such as a user manual or troubleshooting guide in Seller Central for any of your products. Be sure to follow the steps under "Upload product documents" and review the "Document guidelines" at the bottom.

If you run into any issues with this, please don't hesitate to open a support case with Selling Partner Support. If you include the relevant CASE ID, I can ensure it reaches proper conclusion.

Let me know if you have any questions related to this.

Have a great day!

- Manny