If you cannot access the Checkout.com status page after you've enabled single sign-on (SSO), you may see the error The reply URL...does not match...
This means the URL for our status page is not in your allowed list.
To resolve this, you must have the Identity and Access Management (IAM) admin user role. Add the reply URL from the error message to your Azure AD app configuration's list of allowed URLs. For example, you may need to add https://authcheckout.okta.com/sso/saml2/xxxxxxxxxxxx.