✳ DURATION DIAGNOSE
Diagnose: video duration exceeds platform limit
Dynamic diagnostic state for this problem. Choose a file to run the diagnostic tree; the page rerenders with ranked causes and recommended fixes.
Direct answer
The destination has a published maximum duration that varies by surface (organic, ads, API) and sometimes by account tier. Read the exact error first; if it names a duration, trim a copy to just under that limit.
Run the diagnostic tree
The tree combines this problem's static cause ranking with the values the diagnostic engine reads from your file.