Reference
group.member_joined — Someone joined a group
Service message "X joined the group" / "A added B" in a group the account is in.
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Service message "X joined the group" / "A added B" in a group the account is in.
Since web 1.7.0, worker —.
| Name | Value |
|---|---|
| Code | group.member_joined |
| Group | Groups & channels |
| Status | Subscribable |
| Scope needed to receive it | messages.read |
| Tied to one account | Yes |
| Only the connection that caused it receives it | No |
| Filters that apply | chat_types, conversation_ids, conversation_tags |
Fields dropped in thin content mode |
conversation.title, conversation.topic.title, actor.name, actor.username |
| Fields written by outside people (untrusted) | conversation.title, actor.name |
JSON Schema
https://tlg.builera.app/schemas/events/group.member_joined/2.json
Sample payload (exactly what webhooks.test sends)
{
"specversion": "1.0",
"id": "evt_01JDOCSSAMPLE",
"source": "https://tlg.builera.app/ws/07c2e5e1-c42f-4212-851b-c55b6dd7989d",
"type": "group.member_joined",
"time": "2026-10-21T13:45:00.123Z",
"datacontenttype": "application/json",
"dataschema": "https://tlg.builera.app/schemas/events/group.member_joined/2.json",
"platform": "telegram",
"workspaceid": "07c2e5e1-c42f-4212-851b-c55b6dd7989d",
"accountid": "1a7d2c40-5b1e-4e7a-9d3f-6c2b8e1f0a11",
"seq": "000000000000000",
"schemaversion": "2",
"correlationid": null,
"causationid": null,
"test": true,
"replay": false,
"data": {
"conversation": {
"id": "5b7c9d1e-2f3a-4b5c-8d9e-0f1a2b3c4d5e",
"chat_type": "supergroup",
"title": "Nhóm Khách VIP",
"peer_tg_id": "-1001234567890",
"topic": {
"id": 12,
"title": "Hỏi giá"
},
"assignee_id": null,
"tags": [],
"campaign_id": null,
"lock": null
},
"account": {
"id": "1a7d2c40-5b1e-4e7a-9d3f-6c2b8e1f0a11",
"label": "Sale 1",
"username": "sale_demo_1",
"tg_user_id": "100200300"
},
"action": "chat_add_user",
"actor": {
"tg_user_id": "456789",
"name": "Nguyễn Văn A",
"username": "nva",
"person_id": "c41b7e2a-9d3c-4b1f-8e2a-7c5d3b1f9e08",
"stage_id": "3e5f7a9b-1c3d-4e5f-9a1b-2c3d4e5f6a7b",
"is_contact": true,
"internal": false
},
"message_id": "6b1c3d5e-7f9a-4b2c-8d4e-6f8a0b2c4d6e",
"links": {
"app": "https://tlg.builera.app/w/07c2e5e1-c42f-4212-851b-c55b6dd7989d/inbox?c=5b7c9d1e-2f3a-4b5c-8d9e-0f1a2b3c4d5e"
},
"untrusted_fields": [
"conversation.title",
"actor.name"
]
}
}