The only mandatory attachment is the proof of purchase (invoice/receipt) showing:

• the purchase date
• the point of sale / reseller name (store or website)

Yes. The purchase date must be provided and must be consistent with the proof of purchase.

The product must meet the following criteria:

• Comes with the “Digital Passport” card
• Purchased from April 1, 2025 onward (S.T. Dupont network and authorized retailers)
• Made in France
• Unique serial number (7 characters)

Note: some product ranges (e.g., limited editions / Haute Creation and leather goods) are currently excluded.

By entering the required information (e.g., serial number) on the platform, it will automatically indicate whether the product is eligible or not.

Platform link (mobile + web): https://certification.st-dupont.com/certification

The most common reasons are:

• Missing Digital Passport card: product not eligible
• Proof of purchase missing / unreadable / incomplete (missing date or point of sale)
• Purchase date not provided or inconsistent with the proof of purchase
• Purchased before April 1, 2025: product not eligible

The rejection may be due to an incomplete/unreadable proof of purchase, or a missing purchase date. Please check your invoice and the information entered.

Validation depends on the checks performed. You will be notified on the platform as soon as the certificate is validated (or rejected).

Yes. The product comes with a standard warranty card (2 years) and a “Digital Passport” card. By scanning the QR code and activating the Digital Passport, you automatically receive a 6-month warranty extension, for a total of 2 years + 6 months.

The warranty is calculated from the purchase date, not from the Digital Passport activation date.

Ask the point of sale for a duplicate. Without proof of purchase, your Digital Passport cannot be validated.

Yes, you can register multiple products, as long as they are eligible and you have a proof of purchase for each one.

If the information does not match, your request will be rejected. You can submit it again by entering the correct information (purchase date, point of sale, etc.).

Yes, only if the previous owner has transferred the certificate to you via the platform. Without a prior transfer, activation is not possible. Please refer to the User Guide (menu Services → Transfer digital passport, then confirmation).

Without the Digital Passport card, the product is considered not eligible.

No, but it is recommended in order to benefit from the 6-month warranty extension.

Yes. You can transfer the Digital Passport by following the steps in the User Guide (menu Services → Transfer digital passport, then confirmation).

Yes. Follow the User Guide: Services → Lock my digital passport, select the reason (Loss / Theft / Other), then confirm with Validate.