# AddCustomMetadataPropertyOptionsInput > Input in domain **Metadata** - HTML: [AddCustomMetadataPropertyOptionsInput.html](AddCustomMetadataPropertyOptionsInput.html) - Raw SDL: [AddCustomMetadataPropertyOptionsInput.sdl](AddCustomMetadataPropertyOptionsInput.sdl) - Covered by: [llms.txt](../llms.txt) ## Input fields - `propertyId`: `ID!` — `CustomMetadataProperty` Id. - `options`: `[AddCustomMetadataPropertyOptionInput!]!` — List of `CustomMetadataPropertyOption` items to add to existing `CustomMetadataProperty`.