> For the complete documentation index, see [llms.txt](https://docs.shoplift.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.shoplift.ai/api-reference/public-api/create-custom-audience.md).

# Create custom audience

Creates a new custom audience scoped to the store. Audiences can be referenced by ID when creating or updating tests. Names are unique per store (exact match); a duplicate returns 400. A country rule's values must be ISO 3166-1 alpha-2 codes ("GB", not "United Kingdom" or "UK"); any other value returns 400 naming the code to use.

```json
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```