For example, the source says credits have to be checked before scheduling, filenames should not change once links are recorded, and the announcement cannot go out if the destination link is broken. I kept those rules, along with the roughly 30-minute post-launch check. The source did not say exactly when the scheduling cutoff was, whether a fallback video format was approved, or who should make the final call on a creative-direction change, so I left those decisions open instead of making up answers.