Sometimes objects do not have meaningful titles. For example, people often do not title photos when using a photo app. To avoid having to add a meaningless title (for example, "photo"), Open Graph supports objects that have no title. Title-less objects are created simply by leaving the
og:title field empty.
Stories generated for title-less objects use the object type instead of the title as noun phrase in the auto-generated sentence. For example, a take action on a photo object will be rendered this way (note that the picture is large because this is a user-generated photo):
This is how published actions look like with and without title. For clarity, the examples with titles have
og:title set to “Object title” and
og:description set to “Object description”.
Timeline story with user-generated photo and message: