what do the automation output statuses mean?

each deliverable an automation generates shows one of five statuses.

• generating: dibs is writing the brief and generating the deliverable.
• needs approval: generated and waiting for you to approve or reject it.
• scheduled: approved (or published automatically) and on the posting schedule.
• posted: published to the connected account.
• failed: something went wrong while generating; the run's other deliverables aren't affected.