# AddCustomMetadataPropertyOptionInput > Input in domain **Metadata** - HTML: [AddCustomMetadataPropertyOptionInput.html](AddCustomMetadataPropertyOptionInput.html) - Raw SDL: [AddCustomMetadataPropertyOptionInput.sdl](AddCustomMetadataPropertyOptionInput.sdl) - Covered by: [llms.txt](../llms.txt) ## Input fields - `value`: `String!` — `CustomMetadataPropertyOption` value. - `isDefault`: `Boolean` = `false` — Define `CustomMetadataPropertyOption` as default. Applies to newly created `Assets` only.