Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

Post a Feed Element

Make a call to post a feed element.
Call postFeedElement(communityId, subjectId, feedElementType, text) to post a string of text.
1ConnectApi.FeedElement feedElement = ConnectApi.ChatterFeeds.postFeedElement(Network.getNetworkId(), '0F9d0000000TreH', ConnectApi.FeedElementType.FeedItem, 'On vacation this week.');

The second parameter, subjectId is the ID of the parent this feed element is posted to. The value can be the ID of a user, group, or record, or the string me to indicate the context user.