> For the complete documentation index, see [llms.txt](https://docs.peakcommerce.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.peakcommerce.com/product/customer-self-service/overview/access-the-customer-portal.md).

# Access the Customer Portal

Customers sign in at your portal domain. Authentication is handled by **Auth0** (or your own IdP / SSO if connected).

* **New customers** sign up on the portal's hosted login / sign-up page. Depending on your setup, sign-up may ask for an email and password (and sometimes a billing account number to link an existing account).
* **Returning customers** sign in with their credentials, or via SSO / social login where enabled.
* **Forgot password** is handled by Auth0's reset flow.

This is separate from signing up through an e-commerce checkout journey, which creates the account as part of the purchase.


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