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Return the mandatory fields when creating an ad unit (list/table).
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**Source:** [Ad Units IDs Configuration](https://tripledotstudios.atlassian.net/wiki/spaces/KB/pages/4014604323)
## Mandatory Fields for Ad Unit Creation
| **Field** | **Type** | **Validation** | **Description** |
|-----------|----------|----------------|-----------------|
| Type | Dropdown | Mandatory | Select ad type (Banner, Interstitial, Rewarded Videos) |
| Platform | Dropdown | Mandatory | Select platform (iOS, Android) |
| Mediation | Dropdown | Mandatory | Select mediation platform (MAX, Google, Meta) |
| Ad Unit ID | String | Mandatory, Unique | Specific ID to be used for the ad unit |
| Max Analytics bucket | Integer | Mandatory for Interstitial/Rewarded Video, Optional for Banners | Defines bucket for CPM calculation |
### Additional Important Notes:
- Default values are pre-selected for most dropdown fields
- Ad Unit ID must be unique across your configuration
- Analytics bucket is critical for performance tracking, especially for Interstitial and Rewarded Video ads