# AddCollectionAssetsInput

> Input in domain **Collections**

- HTML: [AddCollectionAssetsInput.html](AddCollectionAssetsInput.html)
- Raw SDL: [AddCollectionAssetsInput.sdl](AddCollectionAssetsInput.sdl)
- Covered by: [llms.txt](../llms.txt)

## Input fields

- `collectionId`: `ID!` — `Collection` Id.
- `assetIds`: `[ID!]!` — Ids of the `Assets` to add to the `Collection`. Must be in the same `Library` as the `Collection`.