# type CreativeSet (v202505)

**Service** **CreativeSetService** **Dependencies** [CreativeSetPage](https://developers.google.com/ad-manager/api/reference/v202505/CreativeSetService.CreativeSetPage) [createCreativeSet()](https://developers.google.com/ad-manager/api/reference/v202505/CreativeSetService#createCreativeSet) [updateCreativeSet()](https://developers.google.com/ad-manager/api/reference/v202505/CreativeSetService#updateCreativeSet) ▼ **CreativeSet**

A creative set is comprised of a master creative and its companion creatives.

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202505`

| ## Field ||
|---|---|
| ### `id` | ` xsd:long` Uniquely identifies the `CreativeSet`. This attribute is read-only and is assigned by Google when a creative set is created. |
| ### `name` | ` xsd:string` The name of the creative set. This attribute is required and has a maximum length of 255 characters. |
| ### `masterCreativeId` | ` xsd:long` The ID of the master creative associated with this creative set. This attribute is required. |
| ### `companionCreativeIds` | ` xsd:long[]` The IDs of the companion creatives associated with this creative set. This attribute is required. |
| ### `lastModifiedDateTime` | ` https://developers.google.com/ad-manager/api/reference/v202505/CreativeSetService.DateTime ` The date and time this creative set was last modified. |