MS Entra – Calendars – User Calendars

Get a list of calendars for a user.

Action details

Property	Value
Action label	MS Entra – Calendars – User Calendars
Category	CloudTools
Apex class and method	GetMSGraphCalendars.getCalendars
Input type	GetMSGraphCalendars.GetMSGraphCalendarsInput
Output type	List<List<MSGraphCalendar>>
Authorization	Microsoft 365 connector; supported authorization depends on the endpoint and target.
Microsoft Graph request	GET /me/calendars or /users/{email}/calendars

Prerequisites and permissions

Configure a CloudTools Connector with Connector Type set to Microsoft 365. Complete sign-in for OAuth Delegated (Authorization Code). For supported OAuth Application (Client Credentials) requests, grant application permissions and administrator consent. The identity must have access to the selected resource; directory operations can also require Microsoft Entra roles. Use Creating an Entra ID App and Integration Connectors for setup.

The action permission provider declares these alternatives. They are not cumulative requirements, not all are least privileged, and a scope can have target-specific restrictions. Check the Microsoft operation reference before selecting permissions.

Permission type	Declared alternatives
Delegated	Calendars.ReadBasic, Calendars.ReadWrite, Calendars.Read, Calendars.Read.Shared
Application	Calendars.ReadBasic, Calendars.ReadWrite, Calendars.Read

Endpoints: /me/calendars; /users/{idOrUserPrincipalName}/calendars

See the Microsoft operation and permissions reference.

Inputs

Input	Apex field	Type	Required	Description
Email	email	String	No	Email address of the user

Supply a nonempty list with a non-null first request. Graph actions process only that first request. Global inputs do not expose connectorId; subscriber Apex and Flow use CloudTools connector selection. Use Microsoft Graph resource IDs or the specifically documented user identifier, and resolve dynamic values before invocation.

Outputs

Returns an outer list containing one resource collection. It is not one collection for every input request. A null response or unmapped value produces an empty inner collection.

Output	Apex field	Type	Description
Id	id	String	Calendar id
Name	name	String	Calendar name
Color	color	String	Calendar color
Change Key	changeKey	String	Change key
Can Edit	canEdit	Boolean	Whether the user can edit the calendar
Can Share	canShare	Boolean	Whether the user can share the calendar
Can View Private Items	canViewPrivateItems	Boolean	Whether private items are visible
Owner	owner	MSGraphCalendarEmail	Calendar owner

Behavior and limits

This implementation maps the returned collection without following or exposing @odata.nextLink. A result can contain only the first page; do not treat it as a complete tenant or resource inventory.

Delegated authorization can select /me for user-calendar operations. Outside delegated access, supply the target user required by runtime validation; optional invocable user fields can still be conditionally required.

Use in Flow

Use MS Entra – Calendars – User Calendars where supported. Use a Microsoft 365 application connector configured as Set as default for Flow automations only if the endpoint and target support application access. Supply required values, retain useful outputs, and add fault handling. Delegated connections are not supported for CloudTools Flow automation. The action processes only the first input request.

Use in custom Apex

This subscriber-org example uses the Apptigent namespace. Replace identifiers and example values before use. Configure the connector, complete authorization first, run in a context permitting callouts, and handle exceptions, empty results, and unmapped fields.

Apptigent.GetMSGraphCalendars.GetMSGraphCalendarsInput request =
    new Apptigent.GetMSGraphCalendars.GetMSGraphCalendarsInput();
request.email = 'someone@example.com';



List<List<Apptigent.MSGraphCalendar>> results =
    Apptigent.GetMSGraphCalendars.getCalendars(
        new List<Apptigent.GetMSGraphCalendars.GetMSGraphCalendarsInput>{ request }
    );
System.debug(results);

Use in a Lightning Web Component

Use getMSGraphCalendars from msEntraConnectorLib through MSEntraConnectorController. These c/ imports apply in the same namespace. Set request.connectorId for direct MSEntraAction calls. The controller captures the request selection for MSEntraAction.

Global input	LWC request mapping
email	request.userIdOrPrincipalName

entraActionExample.js

import { LightningElement } from 'lwc';
import { getMSGraphCalendars } from 'c/msEntraConnectorLib';

export default class EntraActionExample extends LightningElement {
    result = null;
    errorMessage = '';
    isRunning = false;
    completed = false;

    async handleRun() {
        if (this.isRunning || this.completed) return;
        this.isRunning = true;
        this.errorMessage = '';
        try {
            const request = { connectorId: 'REPLACE_WITH_CONNECTOR_RECORD_ID' };
            request.userIdOrPrincipalName = 'someone@example.com';
            this.result = await getMSGraphCalendars(request);
            this.completed = true;
        } catch (error) {
            this.errorMessage = error.requiresInteractiveAuthorization
                ? 'Sign in to Microsoft for the connector, then try again.'
                : error.message || 'The Entra action failed.';
        } finally {
            this.isRunning = false;
        }
    }
}

entraActionExample.html

<template>
    <lightning-button label="Run action" onclick={handleRun}
        disabled={isRunning}></lightning-button>
    <p role="alert">{errorMessage}</p>
</template>

The library returns an array of mapped DTOs. The controller can flatten nested fields, serialize data, or map an action result into an operation DTO. rawJson contains serialized mapped Apex data rather than the untouched Graph response.

Use getMSEntraAuthorizationState, beginMSEntraAuthorization, and createMSEntraOAuthMessageHandler to arrange delegated sign-in. The library normalizes errors but does not automatically sign in or retry. Reset completed for a new deliberate operation, and inspect resource state before retrying a mutation with an uncertain outcome.

Error handling and troubleshooting

Symptom	What to check
Required fields error	Supply a nonempty request list and required or conditionally required inputs. For LWC, use the mapped field names.
Authorization or access denied	Check connector selection, sign-in, endpoint/target permission support, administrator consent, directory roles, and resource access.
Resource not found	Check Microsoft IDs and parent resource relationships. Preserve group/drive/item associations and mailbox/calendar/event IDs.
Missing or unexpected output	Check query support, pagination, wrapper versus item models, public-only properties, and mapped DTO fields.
Operation rejected	Inspect the Microsoft error, supported writable fields, group/calendar restrictions, recipient/license data, and file transfer limits.

See Entra connector introduction.