App has 8+ content fields; most never leave 1 — genre macros unmapped. SSAI strips more at URL limits 2. Bidders average 0.73 biddable categories 3. Content ID can lift to 5.96, but few configure it. Bid flow: 21.
FIELD NOTES
- Content ID: 0.73→5.96 biddable categories/impression
- Genre in bid request = 27% higher CPMs on average
- Missing cattax = Taxonomy 1.0 assumed (392 vs 705 cats)