When you prepare to embed an Outlook / Exchange Calendar in WordPress, then please ensure that you have already applied the following configurations to your site.
- You have configured OpenID Connect based single sign-on (SSO).
- You are a Global Administrator for your company’s Office 365 tenant / Azure AD directory (or have at least the ability to edit the Azure Active Directory App registration that was created previously when the single sign-on capability was configured).
- You are an Administrator for your WordPress website.
If you wish to configure any of the premium options, such as grouping of events e.g. by week or month, defining a date range, customizing columns and the display template, then you need to purchase the WPO365 | M365 APPS addon or WPO365 | INTRANET bundle.