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Contacts

Block a contact

Blocks a contact by their Featurebase ID using the global moderation system.

POST
/v2/contacts/{id}/block

Path Parameters

  • id - The Featurebase internal ID of the contact (MongoDB ObjectId)

Supported Contact Types

This endpoint blocks both:

  • Customers - Users with registered accounts
  • Leads - Anonymous or unregistered visitors

Blocking Behavior

When a contact is blocked:

  • The contact cannot send new messages via messenger
  • The contact cannot interact with feedback/changelog surfaces for this organization
  • Existing conversations are not deleted but no new messages can be added by the blocked user
  • The block can be removed by unblocking the contact

Response

Returns a block confirmation object:

  • id - The ID of the blocked contact
  • object - Always "contact"
  • blocked - Always true

Example Response

{
  "id": "507f1f77bcf86cd799439011",
  "object": "contact",
  "blocked": true
}

Version Availability

This endpoint is only available in API version 2026-01-01.nova and newer.

Authorizations

Authorizationstringheaderrequired

API key as Bearer token. Use: Authorization: Bearer sk_...

Path Parameters

idstringrequired

Featurebase contact ID

Example: 507f1f77bcf86cd799439011

Headers

Featurebase-Versionenum<string>header

API version for this request. Defaults to your organization's configured API version if not specified.

Available options: 2026-08-19.orbit, 2026-01-01.nova, 2025-12-12.clover
Example: 2026-08-19.orbit

Response

application/json

Success

blockedenum<boolean>required

Indicates the contact was blocked

Available options: true
Example: true
idstringrequired

Unique identifier of the blocked contact

Example: 507f1f77bcf86cd799439011
objectenum<string>required

Object type identifier

Available options: contact
Example: contact

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