> 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/knowledge-graph/object-types/external-mapping.md).

# ExternalMapping

A representation of a link between an external entity from an external system and the corresponding Collibra resource.

```graphql
type ExternalMapping implements Auditable, Node {
  createdBy: User
  createdOn: DateTime
  externalEntityId: String!
  externalSystemId: String!
  id: UUID!
  modifiedBy: User
  modifiedOn: DateTime
  system: Boolean!
}
```

### Fields

#### createdBy ● [`User`](/api/graphql/knowledge-graph/object-types/user.md) object <a href="#created-by" id="created-by"></a>

The user who created this resource.

#### createdOn ● [`DateTime`](/api/graphql/knowledge-graph/scalars/date-time.md) scalar <a href="#created-on" id="created-on"></a>

The creation date of this resource.

#### externalEntityId ● [`String!`](/api/graphql/knowledge-graph/scalars/string.md) non-null scalar <a href="#external-entity-id" id="external-entity-id"></a>

The external entity ID of this mapping.

#### externalSystemId ● [`String!`](/api/graphql/knowledge-graph/scalars/string.md) non-null scalar <a href="#external-system-id" id="external-system-id"></a>

The external system ID of this mapping.

#### id ● [`UUID!`](/api/graphql/knowledge-graph/scalars/uuid.md) non-null scalar <a href="#id" id="id"></a>

The universally unique identifier of this node.

#### modifiedBy ● [`User`](/api/graphql/knowledge-graph/object-types/user.md) object <a href="#modified-by" id="modified-by"></a>

The user who last modified this resource.

#### modifiedOn ● [`DateTime`](/api/graphql/knowledge-graph/scalars/date-time.md) scalar <a href="#modified-on" id="modified-on"></a>

The last modified date of this resource.

#### system ● [`Boolean!`](/api/graphql/knowledge-graph/scalars/boolean.md) non-null scalar <a href="#system" id="system"></a>

Whether this resource is reserved by the system.

### Interfaces

#### [`Auditable`](/api/graphql/knowledge-graph/interfaces/auditable.md) interface

An interface implemented by all types holding auditing information.

#### [`Node`](/api/graphql/knowledge-graph/interfaces/node.md) interface

A base interface implemented by all types.

### Member Of

[`Asset`](/api/graphql/knowledge-graph/object-types/asset.md) object ● [`Community`](/api/graphql/knowledge-graph/object-types/community.md) object ● [`Domain`](/api/graphql/knowledge-graph/object-types/domain.md) object