Log in to access updated customer account and product numbers

We're always looking for ways to make your time with Sanofi as simple and seamless as possible. That's why we're upgrading your Sanofi experience by enhancing our service quality, streamlining customer numbers, updating product numbers, and increasing security.

It all begins with your new Sanofi or VaxServe customer account number. To access it, log in with the unique passcode that you received in the mail.