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Chat App Message Service:AddCustomAudienceUser

Last Updated:Jan 27, 2026

Adds users to a custom audience.

Operation description

After users are submitted to a custom audience, Meta matches them. If fewer than 100 users are matched, Meta discards the data. This prevents phone numbers from being linked directly to user tokens. Each API call supports up to 10,000 user records.

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RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

cams:AddCustomAudienceUser

create

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

CustSpaceId

string

Yes

The space ID of the Independent Software Vendor (ISV) sub-customer or the instance ID of a direct customer.

  • The direct customer's instance ID.

cams-**

PageId

string

Yes

The Page ID for Messenger.

239**

AdAccountId

string

Yes

The ID of the Meta ad account.

3939**

CustomAudienceId

string

Yes

The ID of the custom audience.

399**

Users

array<object>

Yes

A list of users.

object

No

An object.

Email

string

No

The email address.

Example

Phone

string

No

The phone number.

Example

EstimatedNumTotal

integer

No

The phone number data used for estimation.

26

BatchLastFlag

boolean

No

Indicates whether this is the last batch of data.

false

Response elements

Element

Type

Description

Example

object

AccessDeniedDetail

string

Details about the access denial.

None

Message

string

The error message.

OK

RequestId

string

The request ID.

39**

Code

string

The request status code.

  • A value of `OK` indicates that the request was successful.

  • For more information, see Error codes.

OK

Success

boolean

Indicates whether the operation was successful. Valid values:

  • true: The operation was successful.

  • false: The operation failed.

true

Examples

Success response

JSON format

{
  "AccessDeniedDetail": "None",
  "Message": "OK",
  "RequestId": "39**",
  "Code": "OK",
  "Success": true
}

Error codes

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.