Single Sign-On allows users to log in to a cPanel & WHM or Plesk hosting account directly from a link in WHMCS without reauthenticating.
Application Links use WHMCS Single Sign-On to allow users to seamlessly access WHMCS from the cPanel or WP Squared control panels.
Sign-in integrations allow customers to connect with our supported platforms — Facebook®, Google®, or X™ (formerly Twitter™) — to quickly sign up or log in to WHMCS.
OpenID Connect is the online standard for Single Sign-On and identity provisioning. It uses JSON-based identity tokens (JWT) and OAuth 2.0.
OpenID Connect uses JSON-based identity tokens (JWT) and OAuth 2.0 to allow third-party applications to access WHMCS with Single Sign-On.
Troubleshoot and resolve Oops! Access Denied - Forbidden errors.
Troubleshoot and resolve Duo® Security errors.