Hi @Seller_vbR0jbHSk8Y1x,

Thank you for reaching out with your concern regarding the FNSKU and ISBN requirements for your board books with sound buttons. I understand the confusion and frustration you may be experiencing, and I'm here to provide some guidance to help resolve this issue.

First and foremost, I want to assure you that Amazon takes product compliance seriously, and we strive to ensure that all products sold on our platform meet the necessary requirements. In your case, it's essential to strike a balance between Amazon's labeling requirements and the Canadian import regulations for books.

Based on the information you provided, it seems that your freight forwarder is correct in stating that the ISBN code must be visible on the back of the book for import purposes in Canada. This is a legal requirement, and it's crucial to comply with it to avoid any potential issues during the import process.

At the same time, Amazon requires that the FNSKU label covers any existing barcodes, including ISBNs, to ensure proper inventory management and prevent potential scanning errors. However, Amazon also recognizes that certain products, such as books, may have specific labeling requirements that need to be considered.

To address this situation, I recommend the following approach:

Affix the FNSKU label on the polybag in a position that does not cover the ISBN code on the back of the book. This way, both the FNSKU and ISBN will be visible, satisfying both Amazon's and Canada's requirements.

If the polybag is not transparent or if the ISBN code is not easily visible through the polybag, you may need to consider alternative labeling options. For example, you could affix the FNSKU label on the front or side of the polybag, ensuring that it does not cover the ISBN code on the back of the book.

Consult the "Amazon Product Preparation Requirements" help page for specific guidelines on labeling and product preparation. This resource provides valuable information on labeling requirements for different product categories.

If you're still unsure or have additional questions, feel free to reach out to Amazon Seller Support for further assistance. They can provide personalized guidance based on your specific product and situation.

I understand that navigating these requirements can be challenging, but rest assured that Amazon is committed to supporting sellers like yourself. By following the appropriate labeling guidelines and maintaining open communication with Amazon and relevant authorities, you can ensure a smooth and compliant selling experience.

If you have any further questions or concerns, please don't hesitate to reach out. I'll be happy to provide additional assistance or clarification.

Daryl