Calendar
A Calendar in Salesforce (Calendar in the API) is a standard object that represents a single calendar — typically a user's personal calendar, a Public Calendar visible to specific groups of users, a Resource Calendar for shared rooms or equipment, or a Holiday Calendar maintained by an admin.
Definition
A Calendar in Salesforce (Calendar in the API) is a standard object that represents a single calendar — typically a user's personal calendar, a Public Calendar visible to specific groups of users, a Resource Calendar for shared rooms or equipment, or a Holiday Calendar maintained by an admin. Each Calendar record holds a Name, a Type (User, Public, Resource, Holiday), a UserId or other owner reference, and visibility settings governing who can see and book against it. Calendars are containers for Calendar Events and Tasks; they appear as toggleable layers in the Salesforce calendar view, where users can overlay their own Calendar with their team members' Calendars, public Calendars (Office Holidays, Marketing Events), or resource Calendars (Conference Room A, Demo Lab) to coordinate scheduling. Salesforce Calendars integrate with external systems through Einstein Activity Capture and add-on Lightning Sync products that bidirectionally synchronize Events between Salesforce and Microsoft Outlook or Google Calendar.
In plain English
“A Calendar in Salesforce is one calendar — your own, your team's, a meeting-room calendar, or a holiday calendar. You can layer multiple Calendars in the Salesforce calendar view to see everyone's availability at once, like flipping on different colored overlays on a single agenda.”
Worked example
A sales operations team configures three Public Calendars: "Company Holidays" (Type Holiday, maintained by the office manager), "Demo Lab Schedule" (Type Resource, for booking the customer demo room), and "Field Marketing Events" (Type Public, maintained by the marketing team). Each sales rep already has a personal User Calendar by default. When a rep opens Salesforce's calendar view, they see their own events plus any of these three Public Calendars they've toggled on. Booking a customer demo on May 15 in the Demo Lab is now a two-step process: create the Event on the rep's personal Calendar, then add a parallel Event on the Demo Lab Calendar. Anyone else trying to book the lab sees it occupied and avoids the conflict.
Why Calendar matters
Calendar types serve distinct purposes. User Calendars are personal and auto-created when a User is provisioned. Public Calendars are admin-created shared calendars that any user can subscribe to (e.g., 'Company Holidays', 'Conference Schedule'). Resource Calendars represent bookable physical or virtual resources (rooms, equipment, demo environments) and integrate with the Salesforce calendar view's resource-booking flow. Holiday Calendars are a specialized type used to drive business-hours and SLA calculations across Service Cloud and Field Service.
Salesforce Calendars are bidirectionally synced with external mail systems through Einstein Activity Capture (the modern recommended path) or the older Lightning Sync product. Both systems write Calendar Events back into Salesforce as Event records linked to the user's Calendar, and they push outbound — when a rep creates an Event in Outlook, it appears in their Salesforce Calendar within minutes. Configuring sync correctly (which Calendars sync, which don't, which fields map between systems) is one of the most common integration design decisions in Sales Cloud implementations.
Calendar visibility and sharing operate independently from the underlying Event sharing model. A user can see another user's Calendar (the existence of meetings) without seeing the Event details (subject, attendees, body). This two-layer model supports executive-assistant use cases (an EA can manage their executive's Calendar without the full sharing access most CRM data requires) and gives privacy controls that are absent in many simpler calendaring systems.
How organizations use Calendar
Maintains shared Public Calendars for company holidays, all-hands meetings, and field marketing events. Reps overlay these on their personal Calendar to see committed time at a glance and plan customer outreach around organizational events.
Operates Resource Calendars for shared customer-demo environments and the executive briefing center. Account-team scheduling flows through the Resource Calendar, eliminating double-booking conflicts that previously required manual coordination via email.
Maintains a Holiday Calendar that drives Service Cloud's business-hours engine. Cases received during holidays don't tick against SLA timers, ensuring service-level agreements are computed against actual working time rather than total elapsed time.
Trust & references
Straight from the source — Salesforce's reference material on Calendar.
- Calendars in Salesforce HelpSalesforce
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