A Marketplace Wants Your Notification Number: What to Send

You get the email at the worst possible time, usually right after a product starts selling well: "Please provide your cosmetic notification number and supporting documentation within 5 business days or this listing will be removed." If you've already filed, this is a five-minute task. If you haven't, it's suddenly urgent. Either way, here's exactly what a marketplace is actually asking for and how to respond without over- or under-sending.

What they mean by "notification number"

For products sold in Canada, this is your Cosmetic Notification (CN) number, the confirmation you receive after filing a Cosmetic Notification Form through the Cosmetic Notification System. It's proof that Health Canada has been notified of your product's sale, not proof of pre-market approval, since Canada's system is a notification model rather than an approval model. Marketplaces that ask for this number are usually doing basic compliance triage across their seller base, and a valid CN number tends to satisfy that check quickly.

What to actually send

Keep the response focused on what confirms the filing exists and matches the listed product:

1. The CN number itself, exactly as issued, no reformatting
2. The product name as filed, matched to the listing, since a mismatch between the filed name and the storefront name is a common reason these requests get escalated instead of closed
3. The filing date, to show it was done within the required window relative to first sale
4. A copy or screenshot of the confirmation, if the marketplace's process asks for documentation rather than just the number

What you generally do not need to send unprompted: your full ingredient list, your CPSR-equivalent safety file, or internal formulation documents. Marketplaces asking this kind of question are checking that notification happened, not conducting a full regulatory audit. If they ask for more later, that's a different, more detailed request, and it's fine to respond to what's actually asked rather than pre-emptively handing over your whole file.

If the product name on the listing doesn't match the filing

This is the single most common snag. Marketing names change over time, a "Lavender Dream Bar" might be filed under a more clinical internal product name, or a product gets a seasonal rename for a limited run. If the marketplace flags a mismatch, the fix is usually to either file an amendment to update the product name on record, or to clearly explain in your reply that the listing name and the filed name refer to the same product, with whatever internal documentation ties them together.

If you haven't filed yet

If this email lands and you don't actually have a CN number, don't try to bluff a response. File the CNF as soon as possible, and be straightforward with the marketplace about your timeline if they need an interim answer. Trying to stall with a vague reply usually escalates faster than an honest "filing in progress, expect a CN number by [date]" does, especially with marketplaces that have automated compliance workflows tracking these requests.

A short reference for what goes in the reply

Marketplace asks for	What you send
Notification number	Your CN number, exact format
Proof of filing	Confirmation copy or screenshot from the Cosmetic Notification System
Product name confirmation	The filed product name, plus a note if it differs from the listing name
Ingredient list	Only if explicitly requested, not by default
Full safety file	Only if explicitly requested, rarely needed for this kind of check

Keep this from being a fire drill next time

The reason these requests feel urgent is usually that the CN number lives in an inbox somewhere from months ago, not in a place you can pull up in thirty seconds. Once you've filed, keep the CN number, the filed product name, and the confirmation document somewhere you can find fast, per product, so the next marketplace email is a two-minute reply instead of an afternoon of digging through old emails.

Cosmetic Comply keeps every filing's CN number, filed product name, and confirmation in one place per product, and lets you duplicate a past filing for a minor variant rather than starting from scratch, which is exactly the kind of thing that turns a marketplace compliance email from a scramble into routine housekeeping.