Quick reference for Meta’s advertising constraints and AdStellar’s campaign limits.
Campaign Limits
| Limit | Value |
|---|
| Max ad sets per campaign | 500 |
| Max ads per ad set (AdStellar AI) | 10 |
| Max ads per ad set (Meta hard limit) | 50 |
| Max total ads per campaign | 1,500 |
| Max creative/audience combinations | 1,000 |
| Max campaigns per import | 3 |
| Max ads per import | 1,500 |
| Ad name character limit | 400 |
AdStellar’s AI Builder caps ad sets at 10 ads for optimal testing efficiency. When launching into existing campaigns, Meta’s hard limit of 50 ads per ad set applies. Budget Minimums
| Context | Minimum |
|---|
| Meta minimum daily budget | $1/day |
| Minimum per ad set | $5/day |
| Learning phase — Traffic objective | $3/day per ad |
| Learning phase — Leads objective | $5/day per ad |
| Learning phase — Sales objective | $10/day per ad |
For the learning phase, multiply the per-ad minimum by your number of ads per ad set. For example, 5 ads optimizing for Sales need at least $50/day per ad set.
Video Specs by Placement
| Placement | Recommended Aspect Ratio | Also Accepts |
|---|
| Feed (Facebook & Instagram) | 1:1 (square) or 4:5 (vertical) | 16:9 (landscape) |
| Stories & Reels | 9:16 (vertical) | — |
| In-stream Video | 16:9 (landscape) | 1:1 (square) |
| Search | Flexible | Most ratios |
| Marketplace | 1:1 (square) preferred | Other ratios |
Special Ad Category Restrictions
Housing, Credit, and Employment categories restrict:
- No detailed targeting (interests, behaviors)
- No age targeting
- No gender targeting
Issues/Elections/Politics does NOT have these targeting restrictions but requires country selection.
Advantage Audience Constraints
When Advantage Audience is enabled, Meta requires age_max >= 65 and age_min <= 25. These are suggestions to Meta’s algorithm, not hard limits — Meta may deliver outside this range.
AdStellar automatically adjusts these values if needed when Advantage Audience is toggled on.
DSA / Ad Transparency
Meta requires beneficiary and payer information on all ad sets (not just EU-targeted). AdStellar pulls defaults from your Meta Ads Manager settings.
If not configured, set them up in Meta Ads Manager > Advertising Settings > Verifications and ad transparency.
Missing beneficiary/payer information can cause ad set creation to fail. See the EU Beneficiary & Payer guide for step-by-step setup instructions. 
