Use the lightning:availableForChatterExtensionComposer interface to integrate your custom
apps into the Chatter publisher and place the custom app’s payload in the feed. This
interface has an effect only in Lightning communities.
We provide lightning:availableForChatterExtensionComposer to selected customers through a
pilot program that requires agreement to specific terms and conditions. The lightning:availableForChatterExtensionComposer interface is
subject to change and isn’t generally available unless or until Salesforce announces its
general availability in documentation or in press releases or public statements. 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.
The lightning:availableForChatterExtensionComposer interface
works with the lightning:availableForChatterExtensionRenderer interface and the lightning:sendChatterExtensionPayload event to integrate your
custom apps into the Chatter publisher and to render the app’s payload in the feed.
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