 is actually checked (not just appearing checked) Verify [checkout] shortcode is on checkout page Check browser developer tools to see if form HTML is present but hidden Refresh checkout page to reload scripts Check WordPress error logs for form rendering errors Problem: "Auto-create Portal Clients" enabled but no clients appearing Verify Portal plugin is active and enabled Verify "Create Portal Clients" checkbox is checked in settings Verify "Require User Registration" is also enabled (prerequisite) Check that customers actually registered during checkout (not guest) Verify Portal client post type is properly registered Check WordPress error logs for API/creation errors Problem: "Create invoice to pay later" enabled but no invoices created Verify "Create invoice to pay later" checkbox is