> ## Documentation Index > Fetch the complete documentation index at: https://koreai.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Update Bulk Contacts API [Back to API List](/ai-for-service/apis/contact-center/api-list) Use this API to update multiple contacts by IDs. | Method | PUT | | :- | :- | | **Endpoint** | `https://{{host}}/agentassist/api/v1/public/{{streamId}}/contacts/bulk-update` | | **Content Type** | `application/json` | | **Authorization** | `auth: {{JWT}}` See [How to generate the JWT Token.](/ai-for-service/apis/automation/api-introduction#generating-the-jwt-token) | | **API Scope** | Configuration | ## Path Parameters | Parameter | Description | Type | | :- | :- | :- | | `host` | Environment URL, for example, `https://platform.kore.ai` | string, required | | `streamId` | BotId or StreamId. You can access it from the App Settings page of the bot. | string, required | ## Sample Request ```bash expandable=true theme={null} curl --location --request PUT 'https://{{host}}/agentassist/api/v1/public/{{streamId}}/contacts/bulk-update' \ --header 'Content-Type: application/json' \ --header 'accountId: {{accountId}}' \ --header 'auth: {{jwt_token}}' \ --data '[ { "id": "6964af60450340957c6xxxxx", "firstName": "john", "lastName": "doee", "fullName": "john doee", "salutation": "mr", "cellPhone": { "extension": "+", "phoneNumber": "24456xxxxx", "countryCode": "+91" } }, { "id": "6964af806fc554153c0xxxxx", "firstName": "jane", "lastName": "do", "fullName": "jane do", "salutation": "mr", "cellPhone": { "extension": "+", "phoneNumber": "244567xxxxx", "countryCode": "+91" } } ]' ``` ## Request Headers | Header | Description | Required/Optional | | :- | :- | :- | | `auth` | JWT token for authentication. | required | | `accountId` | The account ID associated with the API request. | required | | `Content-Type` | The format in which the request payload is sent to the server: application/json | required | ## Body Parameters | Parameter | Description | Type | | :- | :- | :- | | `id` | The unique identifier of the contact. | string, required | | `firstName` | The first name of the contact. | string, required | | `lastName` | The last name of the contact. | string, required | | `salutation` | The salutation (Mr. or Mrs.) of the contact. | string, required | | `cellPhone.phoneNumber` | The phone number of the contact in numeric digits without any special characters or alphabets. | string, required | | `cellPhone.countryCode` | The country code of the contact. | string, required | | `cellPhone.extension` | The extension of the contact. | string, required | ## Sample Response ```json expandable=true theme={null} { "totalRequested": 2, "successful": 2, "failed": 0, "successfulRecords": [ { "id": "6964af60450340957c6xxxxx", "contact": { "_id": "6964af60450340957c6xxxxx", "firstName": "john", "lastName": "doe", "fullName": "john doe", "salutation": "mr", "cellPhone": { "extension": "+", "phoneNumber": "+9124456xxxxx", "countryCode": "+91" }, "status": "ACTIVE", "instanceBotId": "st-7dc994f0-4436-5134-9fa8-a942625xxxxx", "orgId": "o-16ff21d2-5d27-5fb2-b9bd-9fedb5fxxxxx", "accountId": "65f7d49a5dd06e2cefa45012", "createdBy": "u-cc6ebd6c-656c-5364-abfc-ad5f80exxxxx", "createdByAId": "a-6c63a33-c2a7-49e8-a5ab-82449c8xxxxx", "address": [], "twitterDetails": [], "createdAt": "2026-01-12T08:22:56.321Z", "updatedAt": "2026-01-12T09:55:04.840Z", "updatedBy": "u-cc6ebd6c-656c-5364-abfc-ad5f80exxxxx", "updatedByAId": "a-6c63a33-c2a7-49e8-a5ab-82449c8xxxxx" } }, { "id": "6964af806fc554153c0xxxxx", "contact": { "_id": "6964af806fc554153c0xxxxx", "firstName": "jane", "lastName": "doe", "fullName": "jane doe", "salutation": "mr", "cellPhone": { "extension": "+", "phoneNumber": "+91244567xxxxx", "countryCode": "+91" }, "status": "ACTIVE", "instanceBotId": "st-7dc994f0-4436-5134-9fa8-a942625xxxxx", "orgId": "o-16ff21d2-5d27-5fb2-b9bd-9fedb5fxxxxx", "accountId": "65f7d49a5dd06e2cefaxxxxx", "createdBy": "u-cc6ebd6c-656c-5364-abfc-ad5f80exxxxx", "createdByAId": "a-6c63a33-c2a7-49e8-a5ab-82449c8xxxxx", "address": [], "twitterDetails": [], "createdAt": "2026-01-12T08:23:28.413Z", "updatedAt": "2026-01-12T09:55:04.846Z", "updatedBy": "u-cc6ebd6c-656c-5364-abfc-ad5f80exxxxx", "updatedByAId": "a-6c63a33-c2a7-49e8-a5ab-82449c8xxxxx" } } ], "failedRecords": [] } ``` ## Response Parameters | Parameter | Description | Type | | :- | :- | :- | | `totalRequested` | Total number of records requested. | integer | | `successful` | Total number of records successfully deleted. | integer | | `failed` | Number of records that failed to process. | integer | | `successfulRecords` | Contains array of contacts that were updated. | array of objects | | `successfulRecords.id` | Unique identifier of the contact record. | string | | `successfulRecords.contact._id` | Unique identifier of the contact record. | string | | `successfulRecords.contact.firstName` | Contact's first name. | string | | `successfulRecords.contact.lastName` | Contact's last name. | string | | `successfulRecords.contact.fullName` | Contact's full name. | string | | `successfulRecords.contact.salutation` | Salutation or title of the contact. | string | | `successfulRecords.contact.cellPhone` | Mobile details of the contact. | object | | `successfulRecords.contact.cellPhone.extension` | Dialing prefix. | string | | `successfulRecords.contact.cellPhone.phoneNumber` | Contact's mobile phone number. | string | | `successfulRecords.contact.cellPhone.countryCode` | Country calling code associated with the phone number. | string | | `successfulRecords.contact.status` | Current status of the contact. | string | | `successfulRecords.contact.instanceBotId` | Unique identifier of the associated bot instance. | string | | `successfulRecords.contact.orgId` | Unique identifier of the organization. | string | | `successfulRecords.contact.accountId` | Unique identifier of the account. | string | | `successfulRecords.contact.createdBy` | Unique identifier of the user who created the contact. | string | | `successfulRecords.contact.createdByAId` | Unique identifier of the application that created the record. | string | | `successfulRecords.contact.address` | List of addresses associated with the contact. | array of objects | | `successfulRecords.contact.twitterDetails` | List of Twitter profile details associated with the contact. | array of objects | | `successfulRecords.contact.createdAt` | Timestamp indicating when the contact was created. | string (ISO 8601 Date-Time) | | `successfulRecords.contact.updatedAt` | Timestamp indicating when the contact was last updated. | string (ISO 8601 Date-Time) | | `successfulRecords.contact.updatedBy` | Timestamp indicating when the contact was last updated. | string | | `successfulRecords.contact.updatedByAId` | Unique identifier of the application that updated the contact. | string | | `failedRecords` | List of records that failed to delete. This array is empty when there are no failures. | array of objects | This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.