Steps Required to create .ics file in the Absence notifications

Summary:

We have a requirement to create .ics calendar invite for the absence approval notifications. Enabled the attachments in the notifications in the approval task but still there is no updates added to the calendar. Please help me if there is any document to create .ics file in the notifications.

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):