---
schema_version: "1"
id: d9d448b0e5f09dc07e20f37f28e12cc2c81754c359c31ca4a480b43a38cf15f7
title: ClientID
collection: developer
version: current
locale: en-us
portal_url: https://docs.salesforce.com/developer/current/en-us/marketing-cloud/guides/mc-apis/clientid_appex.md
canonical_url: https://developer.salesforce.com/docs/marketing/marketing-cloud/guide/clientid_appex.html
source_site: developer.salesforce.com
content_type: documentation
content_hash: 8bb06250269c59667c8bc04ec70564b7ea6aacfd2ccabb901027d20fb3a10cd5
products:
  - Marketing Cloud Engagement APIs and Programmatic Languages
  - Marketing Cloud
---
# ClientID

Contains information about a business unit.

| Name               | Data Type | Description                                                              |
| ------------------ | --------- | ------------------------------------------------------------------------ |
| `ClientID1`        | Int       | Specifies system account ID (deprecated).                                |
| `CreatedBy`        | Int       | Returns user ID for user who created object.                             |
| `EnterpriseID`     | Long      | Not used.                                                                |
| `ID`               | Int       | Read-only legacy identifier for an object. Not supported on all objects. |
| `ModifiedBy`       | Int       | Returns user ID for user who modified object.                            |
| `PartnerClientKey` | String    | User-defined partner key for an account.                                 |
| `PartnerUserKey`   | String    | Specifies the partner key value of a user.                               |
| `UserID`           | Int       | Indicates username for an account.                                       |