Use Activity Timeline in Communities
Now you can track your open activities and activity history with the
activity timeline and view them from a record information tab in your community. The activity
timeline is supported for accounts, campaigns, contacts, contracts, leads, opportunities, orders,
quotes, and activity-enabled custom objects.
Where: This feature is available in Lightning communities, accessed through Lightning Experience and Salesforce Classic. Communities are available in Enterprise, Performance, Unlimited, and Developer editions.
Track and manage all activities from your partner community using the Activity timeline.