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Welcome Message Sequences - API Guide | Developer Documentation

Welcome Message Sequences - API Guide

Updated: Nov 17, 2025
When creating Click-to-WhatsApp ads, you can connect a Welcome Message Sequence from your messaging app. A sequence can include text, prefilled message, and FAQs.
This guide explains how to manage Welcome Message Sequences via the API endpoint.

Requirements

Your app must be granted the whatsapp_business_management permission.

Endpoints

//
Create a new sequence / Change an existing sequence
POST /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
// Get a list of sequences / Get a specific sequence
GET /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
// Delete a sequence
DELETE /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
Create a sequence
To upload a new welcome message sequence, send a POST request to the WHATSAPP_BUSINESS_ACCOUNT_ID/welcome_message_sequences endpoint.
Endpoint
// Create a new sequence
POST /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
Sample request
curl-X POST\
-F'welcome_message_sequence=
      {
       "text":"This is a welcome message authored in a 3P tool",
"autofill_message": {"content": "Hello! Can I get more info on this!"},
"ice_breakers":[
    {"title":"Quick reply 1"},
           {"title":"Quick reply 2"},
           {"title":"Quick reply 3"}
        ]
      }' \
-F'name="Driver sign-up"' \
"https://graph.facebook.com/v14.0/WhatsappBusinessAccount/welcome_message_sequences"
-H'Authorization: Bearer <ACCESS_TOKEN>'
Sample response
The response includes a welcome message sequence ID.
{"sequence_id":"186473890"}
Parameters

Parameter

Description

Sample Value

sequence_id
String
Required


Identifier of the sequence.
186473890
name
String
Required


Name of the sequence.
Driver sign-up
welcome_message_sequence
JSON Object
Required


The welcome message JSON that will be sent upon clicking the ad.
{
"text":"This is a welcome message authored in a 3P tool",
"autofill_message": {"content": "Hello! Can I get more info on this!"},
"ice_breakers":[
    {"title":"Quick reply 1"},
    {"title":"Quick reply 2"},
    {"title":"Quick reply 3"}
  ]
}
Change an existing sequence




A sequence linked to an active ad cannot be deleted.


To update an existing sequence, send a POST request to the WHATSAPP_BUSINESS_ACCOUNT_ID/welcome_message_sequences endpoint with:


    The sequence_id parameter set to the ID of the sequence being updatedOther parameters, like name or welcome_message_sequence, that need to be updated.

    

    

    Endpoint
    //
Change an existing sequence
    POST /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
    Sample request
    curl-X POST\
    -F'sequence_id="186473890"'\
    -F'name="Driver sign-up updated name"' \
    "https://graph.facebook.com/v14.0/395394933592466/welcome_message_sequences"
    -H'Authorization: Bearer BEAiil...'
    Sample response
    

    The response includes a success or error message.
    

    

    {"success": true}
    

    

    

    Parameters
    
Placeholder

Description

Sample Value

    sequence_id
    String
    Required

    
Identifier of the sequence.
    186473890
    name
    String
    Optional

    
Name of the sequence.
    Driver sign-up
    welcome_message_sequence
    JSON Object
    Optional

    
The welcome message JSON that will be sent upon clicking the ad.
    {
    "text":"This is a welcome message authored in a 3P tool",
    "autofill_message": {"content": "Hello! Can I get more info on this!"},
    "ice_breakers":[
        {"title":"Quick reply 1"},
        {"title":"Quick reply 2"},
        {"title":"Quick reply 3"}
      ]
    }
    Get a list of sequences
    To get an existing sequence, send a GET request to the WHATSAPP_BUSINESS_ACCOUNT_ID/welcome_message_sequences endpoint.
    Endpoint
    // Get a list of sequences
    GET /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
    Sample request
    curl-XGET"https://graph.facebook.com/v14.0/395394933592466/welcome_message_sequences"
    -H'Authorization: Bearer BEAiil...'
    Sample response
    On success, the API returns a list of sequences for that app.
    [
      {
    "sequence_id":"8716291",
    "name":"Driver Sign up",
    "welcome_message_sequence":"<JSON_OBJECT>",
    "is_used_in_ad": true,
      },
      {
    "sequence_id":"4362",
    "name":"Basic Triage",
    "welcome_message_sequence":"<JSON_OBJECT>",
    "is_used_in_ad": false
      },
      {
    "sequence_id":"0139138",
    "name":"Appointment Schedule",
    "welcome_message_sequence":"<JSON_OBJECT>",
    "is_used_in_ad": true
      }
      ...
      ...
      ...,
      {
    "sequence_id":"6987565",
    "name":"Car Leads",
    "welcome_message_sequence":"<JSON_OBJECT>",
    "is_used_in_ad": false
      },
    ]
    Get a specific sequence
    To get a specific sequence, send a GET request to WHATSAPP_BUSINESS_ACCOUNT_ID/welcome_message_sequences with the sequence_id parameter set to the ID of the sequence you want to query.
    Endpoint
    // Get a specific sequence
    GET /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
    Sample request
    curl-XGET \
    -F'sequence_id="6987565"'
    "https://graph.facebook.com/v14.0/395394933592466/welcome_message_sequences"
    -H'Authorization: Bearer BEAiil...'
    Sample response
    On success, the API returns the requested sequence.
    [
      {
    "sequence_id":"6987565",
    "name":"Driver Sign up",
    "welcome_message_sequence":"<JSON_OBJECT>",
    "is_used_in_ad": false
      },
    ]
    
Placeholder

Description

Sample Value

    sequence_id
    String
    Optional

    
Identifier of the sequence.
    186473890
    limit
    int
    Optional

    
Number of sequences to fetch.
    5
    Delete a sequence
    

    

    A sequence linked to an active ad cannot be deleted.
    

    To delete a sequence, send a DELETE request to WHATSAPP_BUSINESS_ACCOUNT_ID/welcome_message_sequences with the sequence_id parameter set to the ID of the sequence you want to delete.
    

    

    

    Endpoint
    //
GET an existing sequence
    GET /<WHATSAPP_BUSINESS_ACCOUNT_ID>/welcome_message_sequences
    Sample request
    curl-X DELETE \
    -F'sequence_id="1234567890"'
    "https://graph.facebook.com/v14.0/395394933592466/welcome_message_sequences"
    -H'Authorization: Bearer BEAiil...'
    Sample response
    On success, the API returns a success confirmation.
    {"success":true}
    
Placeholder

Description

Sample Value

    sequence_id
    String
    Optional

    
Identifier of the sequence.
    186473890
    Webhook
    The following webhook is triggered when a conversation is started after a user clicks an ad with a Click to WhatsApp’s call-to-action.
    {
    "object": "whatsapp_business_account",
    "entry": [
        {
    "id": "ID",
    "changes": [
            {
    "value": {
    "messaging_product": "whatsapp",
    "metadata": {
    "display_phone_number": "PHONE_NUMBER",
    "phone_number_id": "PHONE_NUMBER_ID"
                },
    "contacts": [
                  {
    "profile": {
    "name": "NAME"
                    },
    "wa_id": "ID"
                  }
                ],
    "messages": [
                  {
    "referral": {
    "source_url": "AD_OR_POST_FB_URL",
    "source_id": "ADID",
    "source_type": "ad or post",
    "headline": "AD_TITLE",
    "body": "AD_DESCRIPTION",
    "media_type": "image or video",
    "image_url": "RAW_IMAGE_URL",
    "video_url": "RAW_VIDEO_URL",
    "thumbnail_url": "RAW_THUMBNAIL_URL",
    "ctwa_clid": "CTWA_CLID",
    "ref": "REF_ID",  // New field in referral

                    },
    "from": "SENDER_PHONE_NUMBERID",
    "id": "wamid.ID",
    "timestamp": "TIMESTAMP",
    "type": "text",
    "text": {
    "body": "BODY"
                    }
                  }
                ]
              },
    "field": "messages"
            }
          ]
        }
      ]
    }
    Marketing API experience
    

    After you submit welcome message sequences through the API, use the sequence ID to configure ads through the Marketing API.
    

    In the ad creative, the sequence ID can be set as follows:
    

    

    {
    "name":
    
"creative",
    "object_story_spec": {...},
    "asset_feed_spec": {
    "additional_data": {
    "partner_app_welcome_message_flow_id": "<SEQUENCE_ID_RETURNED_FROM_POST_REQUEST>"
        }
      }
    }
    For more information about messaging ads, refer to Messaging Ads in the Marketing API documentation.
    

    

    

    

    Ads Manager experience walk-through
    

    1: In the Message Template section of the Ad Creative, select Partner App
    

    Message Template section showing Partner App option
    

      Click the Partner app dropdown and select the appropriate messaging partner app.

      Partner app dropdown menu selection
      

      3: Under Message sequence, select the Welcome Message Sequence that you submitted via the API.
      

      Message sequence selection dropdown
      

        Preview your message sequence and click Save.

        Message sequence preview with Save button
        

        

        

        

        Error codes
        

        

        



Code 

Description 

Possible Solutions 




        

        4027001
        

        Invalid input data
        


        

        Some or all of the input data is not of the required format.
        


        

        Check all the fields and parameters passed into the request are of the correct type and format, and that all required parameters are present.
        



        

        4027005
        

        Unable to create a welcome message sequence
        


        

        An error occurred while trying to create a new welcome message sequence.
        


        

        Check that the access token has all the required permissions for the WhatsApp business account.
        



        

        4027006
        

        Unable to update a welcome message sequence
        


        

        Unable to update the welcome message sequence.
        


        

        Check all fields and the sequence ID for correctness. Check that the access token has the necessary permissions for the WhatsApp business account.
        



        

        4027007
        

        API unavailable
        


        

        The API being accessed is not available for use yet.
        


        

        Wait a day or two for the API to become available and try again.
        



        

        4027010
        

        Missing parameter
        


        

        One or more required parameters is missing.
        


        

        Check all the documentation and ensure the required parameters are present.
        



        

        4027012
        

        Sequence used in an ad
        


        

        The welcome message sequence is linked to an active ad and cannot be updated or deleted.
        


        

        Disconnect the sequence from the ad and try again.
        



        

        4027017
        

        Could not load the sequence
        


        

        Could not load the sequence being updated or deleted.
        


        

        The welcome message sequence either does not exist, or you do not have permission to access it. Please check the access token and make sure you have the required permissions.
        
    
                
        
    
        

            
        
        
        
    
        

    
        

    
    
        
        
        
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