|Personal Blog (free)||No|
|Commercial / School / Non-profit (premium)||Yes|
When checked, users from other Office 365 Azure AD tenants can also sign into your WordPress website.
Usage / Example(s)
Check the box to instruct the plugin to forward users that want to sign into your website to the common Microsoft authorization endpoint (rather than the one that is specific for your tenant) to support users from other tenants signin into your website.
In addition, you need to change to application registration in Azure AD. By default, web app/API registrations in Azure AD are single tenant. However, you can make your registration multi-tenant by finding the Multi-Tenanted switch on the Properties pane of your application registration in the Azure portal and setting it to Yes.