Sent when a tag is removed from a contact — via the tag endpoints (DELETE /api/v1/contacts/{id}/tags or DELETE /api/v1/contacts/{id}/tags/{tagName}) or a contact update that drops tags, one event per tag removed.
{
"event": "contact.tag_removed",
"timestamp": "2026-07-06T14:25:02.410Z",
"data": {
"contact_id": "550e8400-e29b-41d4-a716-446655440000",
"email": "subscriber@example.com",
"tag": "trial-user"
}
}