> For the complete documentation index, see [llms.txt](https://developer.collibra.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.collibra.com/api/graphql/data-access/unions/access-who-item-item.md).

# AccessWhoItemItem

No description

```graphql
union AccessWhoItemItem =
  | AccessControl
  | DataShareRecipient
  | DataSource
  | InvalidInputError
  | NotFoundError
  | User
```

### Possible types

#### [AccessControl](/api/graphql/data-access/object-types/access-control.md) object

Represents an access control object in the system. An access control is the abstract model representing grants, masks, filters and groups (determined by the `action` field).

#### [DataSource](/api/graphql/data-access/object-types/data-source.md) object

Represents a data source in Collibra Data Access.

#### [InvalidInputError](/api/graphql/data-access/object-types/invalid-input-error.md) object

Error when some of the input parameters in the request are not valid.

#### [NotFoundError](/api/graphql/data-access/object-types/not-found-error.md) object

Error when the user is requesting a resource that does not exist.

#### [User](/api/graphql/data-access/object-types/user.md) object

Represents a user in Collibra Data Access. It can be a human user or a machine user (service account) which groups accounts in different data sources.

### Member Of

`AccessControlWhoAuditLog` object ● [`AccessWhoItem`](/api/graphql/data-access/object-types/access-who-item.md) object ● `AttestationDecision` object