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Chat App Message Service:UpdatePhoneEncryptionPublicKey

Last Updated:Sep 29, 2025

Updates the encryption public key for a phone number.

Operation description

  • Before you call this API, you must add and verify a phone number for your WhatsApp Business Account (WABA).

  • If you do not have a phone number for your WABA, call the GetChatappVerifyCode and ChatappVerifyAndRegister APIs to obtain a verification code, and then verify and register the phone number.

QPS limit

This API has a limit of 5 queries per second (QPS) for each user. If you exceed the limit, API calls are throttled, which may affect your business. Call this API at a reasonable rate.

Try it now

Try this API in OpenAPI Explorer, no manual signing needed. Successful calls auto-generate SDK code matching your parameters. Download it with built-in credential security for local usage.

Test

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:UpdatePhoneEncryptionPublicKey

update

*All Resource

*

None None

Request parameters

Parameter

Type

Required

Description

Example

PhoneNumber

string

Yes

The phone number. You can find the phone number on the Phone Number Management page. To go to the page, choose Channel Management > Management > WABA Management.

86158********

EncryptionPublicKey

string

Yes

The public key.

-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt+PMrYw4zUDEk+VeTrp0\n8LZaoVpiVFErX7iuoDjUs4F9vkxMQuIABjcXw\/swzTMEopLORQV28uqN\/2\/x9hjU\****\/Zwa\/Vk5Svp4\niVY4e22FsJCCWUEMvayO8Q+3UGq0eXXQ+8SlUWEMq1VaJ4pwCLsMnmgybA+VmJxi\nkwIDAQAB\n-----END PUBLIC KEY-----"

CustSpaceId

string

No

The space ID of the Independent Software Vendor (ISV) sub-customer or the instance ID of the direct customer. You can find the space ID on the Channel Management page.

cams-kei****

Response elements

Element

Type

Description

Example

object

The data returned.

AccessDeniedDetail

string

Details about the access denial.

None

RequestId

string

The ID of the request.

90E63D28-E31D-1EB2-8939-A94866411B2O

Message

string

The error message.

None

Code

string

The status code of the request. For more information, see Error codes.

OK

Examples

Success response

JSON format

{
  "AccessDeniedDetail": "None",
  "RequestId": "90E63D28-E31D-1EB2-8939-A94866411B2O\n",
  "Message": "None",
  "Code": "OK"
}

Error codes

HTTP status code

Error code

Error message

Description

400 Product.Unsubscript You have not subscribed to the specified product. You have not subscribed to the specified product.
400 Ram.PermissionDeny You are not authorized to perform the operation.
400 System.LimitControl The system is under flow control. The system is under flow control.
400 Unknown.ResourceOwnerId The resource does not belong to the current user. The resource does not belong to the current user.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.