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# AssetConstraintGroup

A constraint group defining the supply placements and countries or regions where an asset is blocked or allowed to serve.

```
object AssetConstraintGroup
```

## Discussion

The `AssetConstraintGroup` object defines a pairing of supply placements and geographic markets that collectively describe where an asset eligibility rule applies. The [`AssetEligibility`](/documentation/Apple-Ads-Platform-API/AssetEligibility) objects embed it to specify the exact scope of a blocking or allowing rule for an asset.

When both `supplyPlacement` and `countryOrRegion` are populated, the constraint applies to the intersection of those placements and markets.

### Example

```json
{
  "supplyPlacement": [
    "SEARCH_TAB",
    "TODAY_TAB"
  ],
  "countryOrRegion": [
    "US",
    "GB"
  ]
}
```

---

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