--- schema_version: "1" id: eb120fd7d6e4ec9e214a9f5b83210b48d6318489cc0e149a52bfbb2aad81854d title: AttachedContentDocument collection: legacydeveloper version: current locale: en-us portal_url: https://docs.salesforce.com/legacydeveloper/current/en-us/object_reference/sforce_api_objects_attachedcontentdocument.md canonical_url: https://developer.salesforce.com/docs/atlas.en-us.object_reference.meta/object_reference/sforce_api_objects_attachedcontentdocument.htm source_site: developer.salesforce.com content_type: documentation content_hash: f51d17c7e25aa2552bc3ad1ac41837c4d4a9ab8a24158a1eef344d92fb993bd8 description: This read-only object contains all ContentDocument objects associated with an object. --- # AttachedContentDocument This read-only object contains all ContentDocument objects associated with an object. ## Supported Calls describeSObjects() ## Special Access Rules ![Note](https://developer.salesforce.com/docs/atlas.en-us.object_reference.meta/object_reference/images/icon_note.png) #### Note Beginning in Summer ’26, Chatter is default turned off in all new orgs. For any features in these orgs that require access to Chatter functionality or the Chatter APIs, turn on Chatter by going to **Setup** | **Chatter Settings** and selecting **Enable**. For details, see [Chatter Is Turned Off by Default in New Orgs Beginning in Summer ’26](https://help.salesforce.com/s/articleView?id=experience.collab_chatter_default_off.htm&type=5&language=en_US). ## Fields | Field Name | Details | | --- | --- | | ContentDocumentId | Type reference Properties Filter, Group, Nillable, Sort Description ID of the attached ContentDocument. This is a relationship field. Relationship Name ContentDocument Relationship Type Lookup Refers To ContentDocument | | ContentSize | Type int Properties Filter, Group, Nillable, Sort Description The size of the document in bytes for notes smaller than 2 GB. In API version 66.0 and later, we recommend that you use the ContentSizeLong field even for notes smaller than 2 GB. | | ContentSizeLong | Type long Properties Filter, Group, Nillable, Sort Description The size of the note in bytes up to 10 GB. This field is available in API version 66.0 and later. | | ContentUrl | Type url Properties Filter, Group, Nillable, Sort Description URL for links and Google Docs. This field is set only for links and Google Docs, and is one of the fields that determine the FileType. This field is available in API version 31.0 and later. | | ExternalDataSourceName | Type string Properties Filter, Group, Nillable, Sort Description Name of the external data source in which the document is stored. This field is set only for external documents that are connected to Salesforce. This field is available in API version 32.0 and later. | | ExternalDataSourceType | Type picklist Properties Filter, Group, Nillable, Restricted picklist, Sort Description Type of external data source in which the document is stored. This field is set only for external documents that are connected to Salesforce. This field is available in APIAPI version 35.0 and later. | | FileExtension | Type string Properties Filter, Group, Nillable, Sort Description File extension of the attached ContentDocument. This field is available in API version 31.0 and later. | | FileType | Type string Properties Filter, Group, Nillable, Sort Description Type of document, determined by the file extension. | | LinkedEntityId | Type reference Properties Filter, Group, Sort Description ID of the record the ContentDocument is attached to. This is a relationship field. Relationship Name LinkedEntity Relationship Type Lookup Refers To Account, Accreditation, ActivationTarget, ActivationTrgtIntOrgAccess, ApiAnomalyEventStore, AssessmentIndicatorDefinition, AssessmentTask, AssessmentTaskContentDocument, AssessmentTaskDefinition, AssessmentTaskIndDefinition, AssessmentTaskOrder, Asset, AssetRelationship, AssignedResource, Award, BoardCertification, BusinessLicense, BusinessMilestone, BusinessProfile, Campaign, CareBarrier, CareBarrierDeterminant, CareBarrierType, CareDeterminant, CareDeterminantType, CareDiagnosis, CareInterventionType, CareMetricTarget, CareObservation, CareObservationComponent, CarePgmProvHealthcareProvider, CarePreauth, CarePreauthItem, CareProgram, CareProgramCampaign, CareProgramEligibilityRule, CareProgramEnrollee, CareProgramEnrolleeProduct, CareProgramEnrollmentCard, CareProgramGoal, CareProgramProduct, CareProgramProvider, CareProgramTeamMember, CareProviderAdverseAction, CareProviderFacilitySpecialty, CareProviderSearchableField, CareRegisteredDevice, CareRequest, CareRequestDrug, CareRequestExtension, CareRequestItem, CareSpecialty, CareSpecialtyTaxonomy, CareTaxonomy, Case, CodeSet, CollaborationGroup, CommSubscription, CommSubscriptionChannelType, CommSubscriptionConsent, CommSubscriptionTiming, ConsumptionSchedule, Contact, ContactEncounter, ContactEncounterParticipant, ContentWorkspace, Contract, ConversationEntry, CoverageBenefit, CoverageBenefitItem, CredentialStuffingEventStore, CreditMemo, CreditMemoLine, Dashboard, DashboardComponent, DataStream, DelegatedAccount, DocumentChecklistItem, EmailMessage, EmailTemplate, EngagementChannelType, EnhancedLetterhead, EnrollmentEligibilityCriteria, Event, HealthcareFacility, HealthcareFacilityNetwork, HealthcarePayerNetwork, HealthcarePractitionerFacility, HealthcareProvider, HealthcareProviderNpi, HealthcareProviderSpecialty, HealthcareProviderTaxonomy, Identifier, Image, IndividualApplication, Invoice, InvoiceLine, Lead, ListEmail, Location, MarketSegment, MarketSegmentActivation, MemberPlan, MessagingSession, MktCalculatedInsight, OperatingHours, Opportunity, Order, OrderItem, Organization, OtherComponentTask, PartyConsent, PersonEducation, PersonLanguage, PersonLifeEvent, PersonName, PlanBenefit, PlanBenefitItem, Product2, ProductFulfillmentLocation, ProductItem, ProductItemTransaction, ProductRequest, ProductRequestLineItem, ProductRequired, ProductTransfer, ProfileSkill, ProfileSkillEndorsement, ProfileSkillUser, ProviderSearchSyncLog, PurchaserPlan, PurchaserPlanAssn, ReceivedDocument, Report, ReportAnomalyEventStore, ResourceAbsence, ResourcePreference, ReturnOrder, ReturnOrderLineItem, ServiceAppointment, ServiceResource, ServiceResourceSkill, ServiceTerritory, ServiceTerritoryMember, ServiceTerritoryWorkType, SessionHijackingEventStore, Shift, Shipment, ShipmentItem, Site, SkillRequirement, SocialPost, Solution, Task, ThreatDetectionFeedback, User, Visit, VisitedParty, Visitor, VoiceCall, VolunteerProject, WorkBadgeDefinition, WorkOrder, WorkOrderLineItem, WorkType, WorkTypeGroup, WorkTypeGroupMember | | SharingOption | Type picklist Properties Defaulted on create, Filter, Group, Nillable, Restricted picklist, Sort Description Controls whether or not sharing is frozen for a file. Only administrators and file owners with Collaborator access to the file can modify this field. Default is Allowed, which means that new shares are allowed. When set to Restricted, new shares are prevented without affecting existing shares. This field is available in API versions 35.0 and later. | | Title | Type string Properties Filter, Group, idLookup, Sort Description Title of the attached ContentDocument. | ## Usage Use this object to list all ContentDocument objects attached to an object via a feed post. To retrieve ContentDocument objects, issue a describe call on an object, which returns a query result for each activity since the record was created. You can’t directly query this object.