Hi @Seller_XE4Gk506hJqC8,

I understand your desire to streamline your inventory management across the US and Canada marketplaces. Managing inventory across borders can be challenging, but Amazon does offer solutions to help sellers like yourself.

Based on the previous comment from our knowledgeable community member, dennis_mullin, it appears that inventory held in US FBA warehouses and Canadian FBA warehouses are kept separate and not combined under the same SKU. This is likely due to the different regulatory requirements and logistical complexities involved in cross-border fulfillment.

However, you can still sell the same product in both the US and Canada using the same listing, but you'll need to manage the inventory for each marketplace separately. This means that you'll need to send inventory to FBA warehouses in both countries, and the available quantities will be displayed separately on the respective Amazon.com and Amazon.ca product detail pages.

To streamline your cross-border operations, you may want to explore Amazon's Multi-Country Inventory (MCI) program. MCI allows you to distribute your inventory across multiple Amazon marketplaces from a single source location. This can simplify your logistics and potentially reduce costs associated with shipping to multiple countries.

Here are a few relevant help pages that provide more information on selling across North America and the MCI program:

Selling on Amazon's North American Marketplaces

Multi-Country Inventory (MCI) Program

I hope this information helps clarify how inventory is managed across the US and Canadian marketplaces and provides you with some useful resources to explore further. If you have any additional questions or concerns, please don't hesitate to reach out to our support team.

Daryl