Used to attach existing content to a comment or feed item.
Important
This class isn’t available in version 32.0 and later. In version 32.0 and later, use ConnectApi.ContentCapabilityInput.
Subclass of ConnectApi.FeedItemAttachmentInput.
| Property | Type | Description | Available Version |
|---|---|---|---|
| contentDocumentId | String | ID of the existing content. | 28.0–31.0 |