git:20260316.b232d16 to git:20260522.00a0cac
9 added, 1 removed. Audit A to A.
# Meta Advertising Frameworks
Deep technical documentation of Meta's ad delivery stack: Andromeda, GEM, Lattice, and the Breakdown Effect.
## Files
| File | Use When |
|------|----------|
| `meta-andromeda-deep-dive.md` | Understanding retrieval system, HSNN architecture, creative signals |
| `meta-gem-deep-dive.md` | Understanding generative ads model, InterFormer, knowledge transfer |
| `meta-lattice-deep-dive.md` | Understanding prediction/ranking, MDMO learning, Zipper/Filter |
| `meta-breakdown-effect-deep-dive.md` | Understanding budget allocation, inflection points, scalability |
## Quick Reference
### Meta Ad Delivery Pipeline
```
ANDROMEDA (Retrieval)
↓ Filters millions → thousands
LATTICE (Ranking)
↓ Predicts performance
GEM (Optimization)
↓ Central brain feeding both
AUCTION
↓ Final ad selection
```
### Key Metrics
| System | Key Finding |
|--------|-------------|
| **Andromeda** | 10,000x model capacity, creative = targeting signal |
| **GEM** | +5% IG / +3% FB conversions, auto-deployed Q2 2025 |
| **Lattice** | 10% revenue gain, consolidates hundreds of models |
| **Breakdown Effect** | Low CPA often = small scalability ceiling |
### The Breakdown Effect
When the algorithm gives more budget to ads with higher CPAs:
- It's finding the optimal **blended** result
- Low-CPA ads often have **limited scale**
- Evaluate at **ad set level**, not individual ads
- - Trust the algorithm's meritocratic distribution
+ - Treat distribution as a delivery signal, then verify with account economics and incrementality.
+
+ ### 2026 Operator Caveats
+
+ - Treat Andromeda/GEM/Lattice as delivery-system context, not a reason to remove account-state judgment.
+ - Creative diversity means distinct concepts, proof types, product cues, brand cues, audience states, and offers. Minor caption or crop changes do not count.
+ - Advantage+ is a scale or learning tool when conversion events, exclusions, catalog quality, budget, and creative ledger fields are ready.
+ - Meta ROAS is platform-attributed. Incremental profit requires margin plus conversion lift, geo testing, MMM, or another causal read.
+ - Creator and UGC assets require Partnership Ads or whitelisting permission, usage-rights windows, disclosure evidence, and AI/synthetic-media status before paid use.
## Related Files
- `channels/meta-advertising.md` - Complete Meta ads guide (main reference)
- `checklists/meta-advertising-checklist.md` - Launch & optimization checklist