--- schema_version: "1" id: d5823f867a115bb1ed151dea6898ba5a280b02337820162770115b1a8615f8b2 title: Off-Platform Messaging Objects collection: developer version: current locale: en-us portal_url: https://docs.salesforce.com/developer/current/en-us/service-cloud/messaging-object-model/references/messaging-object-model-off-platform-schemas.md canonical_url: https://developer.salesforce.com/docs/service/messaging-object-model/references/mob-reference/messaging-object-model-off-platform-schemas.html source_site: developer.salesforce.com content_type: documentation content_hash: ea962dcfd081c0c13d98a85c2ee4b8fc096719bf56beb817a91ed0d4b3535891 products: - Messaging Object Model and Data Access - Service Cloud Developer Content --- # Off-Platform Messaging Objects Most Messaging objects are stored on platform, meaning they're part of the standard Salesforce platform, just like other objects you work with in your Salesforce org. The [Object Reference for the Salesforce Platform Guide](https://developer.salesforce.com/docs/atlas.en-us.object_reference.meta/object_reference/sforce_api_objects_concepts.htm) contains a list of on-platform Messaging objects and their descriptions. Some Messaging objects are stored off-platform, meaning they live in a separate, purpose-built database designed to support the scale and performance demands of real-time messaging. ## ConversationEntry Schema Each ConversationEntry record represents a message or event in a voice call or a standard or Enhanced Messaging session. See [ConversationEntry Schema (Off-Platform)](https://developer.salesforce.com/docs/service/messaging-object-model/references/mob-reference/messaging-object-model-conversationentry.md) for a list of fields and their descriptions. ## RelatedRecord Schema The RelatedRecord object links a ConversationEntry record to another record, such as another ConversationEntry, a VoiceCall, or a MessagingSession. See [RelatedRecord Schema (Off-Platform)](https://developer.salesforce.com/docs/service/messaging-object-model/references/mob-reference/messaging-object-model-relatedrecord.md) for a list of fields and their descriptions. ## See Also - [Messaging Object Model](https://developer.salesforce.com/docs/service/messaging-object-model/references/guides/messaging-object-model.md) - [On-Platform vs. Off-Platform Messaging Objects](https://developer.salesforce.com/docs/service/messaging-object-model/references/guides/messaging-object-model-on-off-platform.md) - [Access Conversation Data](https://developer.salesforce.com/docs/service/messaging-object-model/references/guides/messaging-object-model-access-data.md) - [ConversationEntry Schema (Off Platform)](/messaging-object-model/references/messaging-object-model-conversationEntry) - [RelatedRecord Schema (Off Platform)](https://developer.salesforce.com/docs/service/messaging-object-model/references/mob-reference/messaging-object-model-relatedrecord.md) - _Object Reference for the Salesforce Platform_: [ConversationEntry](https://developer.salesforce.com/docs/atlas.en-us.object_reference.meta/object_reference/sforce_api_objects_conversationentry.htm)