Enabling the Custom Scripts is allowing the users to run the custom scripts on personal sites or created site collections. To use the embed script in sites we need to allow it first by using SharePoint designer.
Log in with Global admin in Office 365 Admin Portal Account and Follow the below approach to use custom script.
1. Click on top upper left App launcher then click “Admin”.
2. Now Click on “… Show all”.
3. Select “SharePoint”.
4. Click on the Settings icon.
5. And Click on “Go to the Classic setting page” Link.
6. Now you can find Custom Script setting on this page. Allow both (personal and self-service created sites) and Click on OK Button.
Create the articles inside Outlook and use all the Outlook tools you normally use.
Issue tracking and user support based on Microsoft Outlook and Exchange.
Report time and expenses directly inside the Outlook Calendar.
Visualize, categorize and manage tasks inside Outlook.
Visualize and organize e-mails on personal kanban board in Outlook.
Convert incoming e-mails into SharePoint list items, manually or automatically.
An application for booking resources within an organization which is totally integrated in Outlook.