Wassenger

Interact with Wassenger WhatsApp API

Actions148

Send messages Actions
- Send text message
- Send multimedia message
- Send scheduled message
- Send poll message
- Send votes in a poll
- Delete votes in a poll
- Send meeting event
- Send meeting confirmation
- Send location
- Send contacts
- Send reaction
- Send catalog product
- Forward message
Outbound Messages Actions
- Search Messages
- Get Message
- Update Message
- Delete Message
WhatsApp Numbers Actions
- Get Numbers
- Get Number by ID
- Create Number
- Update Number
- Delete Number
- Delete Chats
Groups Actions
- Get Groups
- Get Group
- Create Group
- Update Group
- Update Group Image
- Add Participants
- Update Participants
- Remove Participants
- Get Pending Members
- Approve Members
- Reject Members
- Get Invite Code
- Revoke Invite Code
- Join Group
- Leave Group
Channels Actions
- Get Channels
- Get Channel
- Create Channel
- Update Channel
- Update Channel Image
- Delete Channel
- Join Channel
- Search Channels
Chats Actions
- Get Chats
- Get Chat Details
- Send Typing Status
- Sync Device Chats
- Sync Chat Messages
- Update Chat Read Status
- Set Chat Status
- Get Group Participants
- Assign Chat
- Unassign Chat
- Create Chat Note
- Delete Chat Note
- Update Chat Labels
- Update Chat Attributes
- Archive Chat
- Unarchive Chat
- Delete Chat
- Bulk Update Chats
Chat Contacts Actions
- Get Contacts
- Get Contact Details
- Create Contact
- Update Contact
- Update Contact Metadata
- Upsert Contact Metadata
- Delete Contact
- Bulk Create Contacts
- Block Contacts
- Unblock Contacts
Chat Messages Actions
- Get Messages
- Get Message Details
- Get Message Delivery Info
- Edit Message
- Delete Message
Chat Files Actions
- Get Files
- Get File Details
- Download File
Team Actions
- Get Team Members
- Update Team Member
- Delete Team Members
- Get Device Team Members
- Create Team Member
- Grant Device Access
- Revoke Device Access
Labels Actions
- Get Labels
- Create Label
- Update Label
- Delete Label
Departments Actions
- Get Departments
- Create Department
- Update Department
- Delete Department
Files Actions
- Search Files
- Upload File
- Delete Files
- Get File Preview
- Download File
- Get File
- Update File
- Delete File
Quick replies Actions
- Get Quick Replies
- Create Quick Reply
- Update Quick Reply
- Delete Quick Replies
Queue Actions
- Get Queue Status
- Set Queue Status
- Route Queue
- Empty Queue
WhatsApp session Actions
- Sync session
- Start session
- Scan QR
- Reset session
- Reboot session
- Get session health
- Request Authentication Code
WhatsApp profile Actions
- Get Profile
- Update Profile
- Get Profile Image
- Update Profile Image
Business catalog Actions
- Get My Catalog
- Query Business Catalog
Campaigns Actions
- Get Campaigns
- Get Campaign
- Update Campaign Status
- Get Campaign Contacts
- Delete Campaign
Meeting Links Actions
- Get Meeting Links
- Create Meeting Link
- Delete Meeting Links
User Status Actions
- Get User Status
- Get User Status by ID
- Update User Status
- Delete User Status
Webhooks Actions
- Get Webhooks
- Create Webhook
- Get Webhook
- Update Webhook
- Delete Webhook
- Enable Webhook
- Get Webhook Logs
Other Actions
- Verify number exists
- Validate phone numbers
- Send API request

Overview

This node integrates with the Wassenger WhatsApp API to manage WhatsApp chat contacts. Specifically, the "Delete Contact" operation under the "Chat Contacts" resource allows users to remove a contact from a specified WhatsApp number's contact list. This is useful for automating contact management tasks such as cleaning up outdated or irrelevant contacts in bulk.

Practical examples include:

Automatically deleting contacts who have unsubscribed or opted out.
Removing test or temporary contacts after campaigns.
Managing contact lists dynamically based on external triggers or workflows.

Properties

Name	Meaning
WhatsApp Number	The ID of the WhatsApp number (device) from which the contact will be deleted.
Contact ID	The unique identifier of the contact to delete (e.g., a WhatsApp user ID like 447362053576@c.us).

Output

The node outputs JSON data representing the result of the delete operation. Typically, this will confirm whether the contact was successfully deleted or provide error information if the deletion failed.

No binary data output is involved in this operation.

Dependencies

Requires an active connection to the Wassenger WhatsApp API.
Needs an API key credential configured in n8n for authentication with the Wassenger service.
The node depends on the internal chatContacts action module to perform the delete operation.

Troubleshooting

Common issues:
- Invalid or missing WhatsApp number ID or contact ID can cause failures.
- Insufficient permissions or invalid API key may lead to authentication errors.
- Trying to delete a non-existent contact might return an error or no-op response.
Error messages and resolutions:
- "Contact not found": Verify that the Contact ID is correct and exists under the specified WhatsApp number.
- "Unauthorized" or "Authentication failed": Check that the API key credential is valid and has proper access rights.
- "Invalid device ID": Ensure the WhatsApp number (device) ID is correctly selected and loaded.

Links and References

Wassenger Official API Documentation
WhatsApp Business API Overview
n8n Documentation on Creating Custom Nodes

WassengerInstall