diff --git a/app/persistence.py b/app/persistence.py
index 3df7462..4cc5120 100644
--- a/app/persistence.py
+++ b/app/persistence.py
@@ -1,3 +1,4 @@
+from datetime import datetime, timezone
 from typing import Any, Dict, Optional, Tuple
 import json
 
@@ -32,6 +33,95 @@ def _lock_source_identity(conn: Any, source_system: str, source_event_id: str |
         })
 
 
+def _message_created_at(value: Any) -> datetime | None:
+    """Normalize a source message timestamp without substituting processing time."""
+    if value in (None, ""):
+        return None
+    if isinstance(value, datetime):
+        return value if value.tzinfo else value.replace(tzinfo=timezone.utc)
+    if isinstance(value, (int, float)) or str(value).strip().replace(".", "", 1).isdigit():
+        try:
+            return datetime.fromtimestamp(float(value), tz=timezone.utc)
+        except (OverflowError, TypeError, ValueError):
+            return None
+    try:
+        parsed = datetime.fromisoformat(str(value).strip().replace("Z", "+00:00"))
+    except ValueError:
+        return None
+    return parsed if parsed.tzinfo else parsed.replace(tzinfo=timezone.utc)
+
+
+def save_factual_chatwoot_message(
+    *,
+    raw_event_id: str,
+    source_event_id: str | None,
+    conversation_id: str | None,
+    contact_id: str | None,
+    direction: str,
+    raw_body: str,
+    clean_body: str | None = None,
+    source_created_at: Any = None,
+    metadata: Dict[str, Any] | None = None,
+) -> tuple[str, bool]:
+    """Persist one factual public Chatwoot message, without workflow effects.
+
+    Returns ``(message_id, inserted)``. Canonical source identity and the
+    transaction advisory lock make webhook delivery and backfill idempotent.
+    """
+    if not settings.clientflow_persist:
+        return "", False
+    normalized_direction = str(direction or "").strip().lower()
+    if normalized_direction not in {"inbound", "outbound"}:
+        raise ValueError("direction must be inbound or outbound")
+    created_at = _message_created_at(source_created_at)
+    with engine.begin() as conn:
+        _lock_source_identity(conn, "chatwoot", source_event_id)
+        existing = None
+        if source_event_id:
+            existing = conn.execute(text("""
+                SELECT id::text FROM messages
+                WHERE source_system='chatwoot' AND source_event_id=:source_event_id
+                LIMIT 1
+            """), {"source_event_id": source_event_id}).first()
+        if not existing:
+            existing = conn.execute(text("""
+                SELECT id::text FROM messages
+                WHERE raw_event_id=CAST(:raw_event_id AS UUID) LIMIT 1
+            """), {"raw_event_id": raw_event_id}).first()
+        inserted = existing is None
+        if inserted:
+            row = conn.execute(text("""
+                INSERT INTO messages (
+                    raw_event_id, source_system, source_event_id, conversation_id,
+                    contact_id, direction, raw_body, clean_body, previous_context,
+                    metadata, created_at
+                ) VALUES (
+                    CAST(:raw_event_id AS UUID), 'chatwoot', :source_event_id,
+                    :conversation_id, :contact_id, :direction, :raw_body, :clean_body,
+                    NULL, CAST(:metadata AS JSONB),
+                    COALESCE(CAST(:created_at AS TIMESTAMPTZ), now())
+                ) RETURNING id::text
+            """), {
+                "raw_event_id": raw_event_id,
+                "source_event_id": source_event_id,
+                "conversation_id": conversation_id,
+                "contact_id": contact_id,
+                "direction": normalized_direction,
+                "raw_body": raw_body,
+                "clean_body": clean_body if clean_body is not None else raw_body,
+                "metadata": _json(metadata),
+                "created_at": created_at,
+            }).first()
+            message_id = str(row[0])
+        else:
+            message_id = str(existing[0])
+        conn.execute(text("""
+            UPDATE raw_events SET message_id=CAST(:message_id AS UUID)
+            WHERE id=CAST(:raw_event_id AS UUID) AND message_id IS NULL
+        """), {"message_id": message_id, "raw_event_id": raw_event_id})
+    return message_id, inserted
+
+
 def save_inbound_message(
     *,
     request: AnalyzeRequest,
diff --git a/app/webhooks_chatwoot.py b/app/webhooks_chatwoot.py
index 24d4ddf..4ad8270 100644
--- a/app/webhooks_chatwoot.py
+++ b/app/webhooks_chatwoot.py
@@ -17,6 +17,7 @@ from app.persistence import (
     get_state_for_conversation,
     mark_raw_event_error,
     mark_raw_event_processed,
+    save_factual_chatwoot_message,
     save_raw_event,
 )
 from app.schemas import AnalyzeRequest
@@ -32,6 +33,12 @@ def as_str(value: Any) -> Optional[str]:
     return str(value)
 
 
+def as_bool(value: Any) -> bool:
+    if isinstance(value, str):
+        return value.strip().lower() in {"1", "true", "yes"}
+    return bool(value)
+
+
 def get_nested(data: Dict[str, Any], *keys: str) -> Any:
     current: Any = data
 
@@ -103,6 +110,11 @@ def message_timestamp(message: Dict[str, Any]) -> Any:
     )
 
 
+def source_message_timestamp(payload: Dict[str, Any]) -> Any:
+    message = payload.get("message") if isinstance(payload.get("message"), dict) else payload
+    return message.get("created_at") or payload.get("created_at") or message.get("timestamp") or payload.get("timestamp")
+
+
 def extract_message_content_for_context(message: Dict[str, Any]) -> str:
     try:
         content = extract_chatwoot_content(message, message)
@@ -261,9 +273,21 @@ def extract_chatwoot_event(payload: Dict[str, Any]) -> Dict[str, Any]:
     message_type_text = str(message_type).lower()
     is_outgoing = message_type_text in {"outgoing", "outbound", "1"}
 
+    # The sender of an outgoing message is normally the agent, not the customer.
+    # Retain a contact only when Chatwoot supplied an explicit conversation/contact
+    # identity rather than falling back to the sender object.
+    if (
+        is_outgoing
+        and payload.get("contact_id") is None
+        and not isinstance(payload.get("contact"), dict)
+        and not isinstance(conversation.get("contact"), dict)
+        and not isinstance(get_nested(conversation, "contact_inbox", "contact"), dict)
+    ):
+        contact_id = None
+
     is_private = bool(
-        message.get("private")
-        or payload.get("private")
+        as_bool(message.get("private"))
+        or as_bool(payload.get("private"))
         or message.get("content_type") == "input_select"
     )
 
@@ -292,6 +316,7 @@ def extract_chatwoot_event(payload: Dict[str, Any]) -> Dict[str, Any]:
         "is_private": is_private,
         "sender_name": as_str(sender_name),
         "sender_type": as_str(sender_type),
+        "created_at": source_message_timestamp(payload),
     }
 
 
@@ -375,6 +400,25 @@ async def process_saved_chatwoot_raw_event(raw_event_id: str, payload: Dict[str,
         }
 
     if extracted["is_outgoing"]:
+        factual_message_id = None
+        if extracted.get("event_type") == "message_created" and not extracted.get("is_private"):
+            factual_message_id, _ = save_factual_chatwoot_message(
+                raw_event_id=raw_event_id,
+                source_event_id=extracted.get("source_event_id"),
+                conversation_id=extracted.get("conversation_id"),
+                contact_id=extracted.get("contact_id"),
+                direction="outbound",
+                raw_body=extracted["content"],
+                clean_body=extracted["content"],
+                source_created_at=extracted.get("created_at"),
+                metadata={
+                    "message_type": extracted.get("message_type"),
+                    "public": True,
+                    "private": False,
+                    "sender_name": extracted.get("sender_name"),
+                    "sender_type": extracted.get("sender_type"),
+                },
+            )
         auto_complete_result = auto_complete_task_from_outgoing_message(
             conversation_id=extracted["conversation_id"],
             contact_id=extracted["contact_id"],
@@ -400,6 +444,7 @@ async def process_saved_chatwoot_raw_event(raw_event_id: str, payload: Dict[str,
             "status": "outgoing_processed" if completed else "ignored",
             "reason": auto_complete_result.get("status"),
             "raw_event_id": raw_event_id,
+            "message_id": factual_message_id,
             "conversation_id": extracted["conversation_id"],
             "contact_id": extracted["contact_id"],
             "auto_complete": auto_complete_result,
diff --git a/scripts/backfill_chatwoot_outbound_messages.py b/scripts/backfill_chatwoot_outbound_messages.py
new file mode 100644
index 0000000..4d4793c
--- /dev/null
+++ b/scripts/backfill_chatwoot_outbound_messages.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python3
+"""Backfill factual public Chatwoot outbound messages; dry-run by default."""
+from __future__ import annotations
+
+import argparse
+import sys
+from pathlib import Path
+
+from sqlalchemy import text
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+if str(PROJECT_ROOT) not in sys.path:
+    sys.path.insert(0, str(PROJECT_ROOT))
+
+from app.db import engine
+from app.persistence import save_factual_chatwoot_message
+from app.webhooks_chatwoot import extract_chatwoot_event
+
+
+def _candidate_rows() -> list[dict]:
+    with engine.connect() as conn:
+        rows = conn.execute(text("""
+            SELECT re.id::text, re.source_event_id, re.conversation_id,
+                   re.contact_id, re.payload, re.created_at
+            FROM raw_events re
+            WHERE re.source_system = 'chatwoot'
+              AND re.event_type = 'message_created'
+              AND lower(COALESCE(re.payload->>'message_type',
+                                 re.payload #>> '{message,message_type}', ''))
+                    IN ('outgoing', 'outbound', '1')
+              AND lower(COALESCE(re.payload->>'private',
+                                 re.payload #>> '{message,private}', 'false'))
+                    NOT IN ('true', '1', 'yes')
+            ORDER BY re.created_at, re.id
+        """)).mappings().all()
+        conn.rollback()
+    return [dict(row) for row in rows]
+
+
+def backfill(*, apply: bool = False) -> dict[str, int]:
+    result = {"candidates": 0, "inserted": 0, "already_present": 0, "skipped": 0, "errors": 0}
+    for row in _candidate_rows():
+        payload = row.get("payload") if isinstance(row.get("payload"), dict) else {}
+        extracted = extract_chatwoot_event(payload)
+        if not extracted.get("is_outgoing") or extracted.get("is_private") or not extracted.get("content"):
+            result["skipped"] += 1
+            continue
+        result["candidates"] += 1
+        with engine.connect() as conn:
+            present = conn.execute(text("""
+                SELECT 1 FROM messages
+                WHERE (source_system='chatwoot' AND source_event_id=:source_event_id)
+                   OR raw_event_id=CAST(:raw_event_id AS UUID)
+                LIMIT 1
+            """), {"source_event_id": row.get("source_event_id"), "raw_event_id": row["id"]}).first()
+            conn.rollback()
+        if present:
+            result["already_present"] += 1
+            continue
+        if not apply:
+            continue
+        try:
+            _, inserted = save_factual_chatwoot_message(
+                raw_event_id=row["id"],
+                source_event_id=extracted.get("source_event_id") or row.get("source_event_id"),
+                conversation_id=extracted.get("conversation_id") or row.get("conversation_id"),
+                contact_id=extracted.get("contact_id") or row.get("contact_id"),
+                direction="outbound",
+                raw_body=extracted["content"],
+                clean_body=extracted["content"],
+                source_created_at=extracted.get("created_at") or row.get("created_at"),
+                metadata={"message_type": extracted.get("message_type"), "public": True,
+                          "private": False, "backfilled": True,
+                          "sender_name": extracted.get("sender_name"),
+                          "sender_type": extracted.get("sender_type")},
+            )
+            result["inserted" if inserted else "already_present"] += 1
+        except Exception:
+            result["errors"] += 1
+    return result
+
+
+def main() -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--apply", action="store_true", help="Insert missing factual messages")
+    args = parser.parse_args()
+    result = backfill(apply=args.apply)
+    print(" ".join(f"{key}={value}" for key, value in result.items()), f"apply={args.apply}")
+    return 1 if result["errors"] else 0
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())
diff --git a/tests/test_chatwoot_outbound_factual_timeline.py b/tests/test_chatwoot_outbound_factual_timeline.py
new file mode 100644
index 0000000..d9af836
--- /dev/null
+++ b/tests/test_chatwoot_outbound_factual_timeline.py
@@ -0,0 +1,200 @@
+import asyncio
+from datetime import datetime, timezone
+
+import app.webhooks_chatwoot as webhook
+import app.persistence as persistence
+from app.persistence import _message_created_at
+
+
+def _payload(*, private=False, message_id=712, content="Resposta pública"):
+    return {
+        "event": "message_created",
+        "id": message_id,
+        "message_type": "outgoing",
+        "private": private,
+        "content": content,
+        "created_at": 1_700_000_000,
+        "conversation": {"id": 2450},
+        "sender": {"id": 9, "name": "Operador", "type": "user"},
+    }
+
+
+def test_chatwoot_timestamp_preserves_epoch_and_iso():
+    assert _message_created_at(1_700_000_000) == datetime.fromtimestamp(1_700_000_000, tz=timezone.utc)
+    assert _message_created_at("2026-08-15T10:20:30Z") == datetime(2026, 8, 15, 10, 20, 30, tzinfo=timezone.utc)
+
+
+def test_outgoing_public_persists_fact_before_existing_outgoing_processing(monkeypatch):
+    calls = []
+    monkeypatch.setattr(webhook, "save_factual_chatwoot_message", lambda **kw: (calls.append(("message", kw)) or ("msg-1", True)))
+    monkeypatch.setattr(webhook, "auto_complete_task_from_outgoing_message", lambda **kw: (calls.append(("outgoing", kw)) or {"status": "no_matching_pending_task"}))
+    monkeypatch.setattr(webhook, "mark_raw_event_processed", lambda **kw: calls.append(("processed", kw)))
+
+    result = asyncio.run(webhook.process_saved_chatwoot_raw_event("00000000-0000-0000-0000-000000000001", _payload()))
+
+    assert [call[0] for call in calls] == ["message", "outgoing", "processed"]
+    assert calls[0][1]["direction"] == "outbound"
+    assert calls[0][1]["source_event_id"] == "712"
+    assert calls[0][1]["contact_id"] is None
+    assert calls[0][1]["source_created_at"] == 1_700_000_000
+    assert result["message_id"] == "msg-1"
+
+
+def test_outgoing_public_does_not_enter_inbound_analysis(monkeypatch):
+    monkeypatch.setattr(webhook, "save_factual_chatwoot_message", lambda **kw: ("msg-1", True))
+    monkeypatch.setattr(webhook, "auto_complete_task_from_outgoing_message", lambda **kw: {"status": "no_matching_pending_task"})
+    monkeypatch.setattr(webhook, "mark_raw_event_processed", lambda **kw: None)
+
+    async def forbidden(*args, **kwargs):
+        raise AssertionError("outgoing factual messages must not enter classification")
+
+    monkeypatch.setattr(webhook, "analyze", forbidden)
+    asyncio.run(webhook.process_saved_chatwoot_raw_event("00000000-0000-0000-0000-000000000001", _payload()))
+
+
+def test_outgoing_private_note_is_not_persisted_as_public_message(monkeypatch):
+    monkeypatch.setattr(webhook, "save_factual_chatwoot_message", lambda **kw: (_ for _ in ()).throw(AssertionError("private note persisted")))
+    monkeypatch.setattr(webhook, "auto_complete_task_from_outgoing_message", lambda **kw: {"status": "ignored_private_note"})
+    monkeypatch.setattr(webhook, "mark_raw_event_processed", lambda **kw: None)
+
+    result = asyncio.run(webhook.process_saved_chatwoot_raw_event("00000000-0000-0000-0000-000000000001", _payload(private=True)))
+    assert result["message_id"] is None
+
+
+def test_string_false_private_value_is_public():
+    assert webhook.extract_chatwoot_event(_payload(private="false"))["is_private"] is False
+
+
+def test_non_message_created_outgoing_event_is_not_persisted(monkeypatch):
+    payload = _payload()
+    payload["event"] = "conversation_updated"
+    monkeypatch.setattr(webhook, "save_factual_chatwoot_message", lambda **kw: (_ for _ in ()).throw(AssertionError("wrong event persisted")))
+    monkeypatch.setattr(webhook, "auto_complete_task_from_outgoing_message", lambda **kw: {"status": "no_matching_pending_task"})
+    monkeypatch.setattr(webhook, "mark_raw_event_processed", lambda **kw: None)
+    asyncio.run(webhook.process_saved_chatwoot_raw_event("00000000-0000-0000-0000-000000000001", payload))
+
+
+class _Rows:
+    def __init__(self, row=None):
+        self.row = row
+
+    def first(self):
+        return self.row
+
+
+class _PersistenceConnection:
+    def __init__(self):
+        self.message_id = None
+        self.inserts = 0
+
+    def execute(self, statement, params=None):
+        sql = str(statement)
+        if "pg_advisory_xact_lock" in sql:
+            return _Rows()
+        if "SELECT id::text FROM messages" in sql:
+            return _Rows((self.message_id,)) if self.message_id else _Rows()
+        if "INSERT INTO messages" in sql:
+            self.inserts += 1
+            self.message_id = "00000000-0000-0000-0000-000000000099"
+            return _Rows((self.message_id,))
+        if "UPDATE raw_events SET message_id" in sql:
+            return _Rows()
+        raise AssertionError(sql)
+
+
+class _Begin:
+    def __init__(self, connection):
+        self.connection = connection
+
+    def __enter__(self):
+        return self.connection
+
+    def __exit__(self, *_args):
+        return False
+
+
+class _PersistenceEngine:
+    def __init__(self):
+        self.connection = _PersistenceConnection()
+
+    def begin(self):
+        return _Begin(self.connection)
+
+
+def test_factual_persistence_is_idempotent_by_source_identity(monkeypatch):
+    fake = _PersistenceEngine()
+    monkeypatch.setattr(persistence, "engine", fake)
+    monkeypatch.setattr(persistence.settings, "clientflow_persist", True)
+    kwargs = {
+        "raw_event_id": "00000000-0000-0000-0000-000000000001",
+        "source_event_id": "712",
+        "conversation_id": "2450",
+        "contact_id": None,
+        "direction": "outbound",
+        "raw_body": "Resposta",
+        "source_created_at": 1_700_000_000,
+    }
+    first = persistence.save_factual_chatwoot_message(**kwargs)
+    second = persistence.save_factual_chatwoot_message(**kwargs)
+    assert first[1] is True
+    assert second == (first[0], False)
+    assert fake.connection.inserts == 1
+
+
+class _BackfillPresence:
+    def __init__(self, present=False):
+        self.present = present
+
+    def execute(self, statement, params=None):
+        return _Rows((1,)) if self.present else _Rows()
+
+    def rollback(self):
+        return None
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, *_args):
+        return False
+
+
+class _BackfillEngine:
+    def __init__(self, presence):
+        self.presence = presence
+
+    def connect(self):
+        return self.presence
+
+
+def test_outbound_backfill_dry_run_apply_and_repeat(monkeypatch):
+    import scripts.backfill_chatwoot_outbound_messages as backfill
+
+    row = {
+        "id": "00000000-0000-0000-0000-000000000001",
+        "source_event_id": "712",
+        "conversation_id": "2450",
+        "contact_id": None,
+        "payload": _payload(),
+        "created_at": datetime(2026, 8, 15, tzinfo=timezone.utc),
+    }
+    presence = _BackfillPresence(False)
+    monkeypatch.setattr(backfill, "_candidate_rows", lambda: [row])
+    monkeypatch.setattr(backfill, "engine", _BackfillEngine(presence))
+    writes = []
+
+    def save(**kwargs):
+        writes.append(kwargs)
+        presence.present = True
+        return "msg-1", True
+
+    monkeypatch.setattr(backfill, "save_factual_chatwoot_message", save)
+
+    assert backfill.backfill(apply=False) == {
+        "candidates": 1, "inserted": 0, "already_present": 0, "skipped": 0, "errors": 0,
+    }
+    assert writes == []
+    assert backfill.backfill(apply=True)["inserted"] == 1
+    repeated = backfill.backfill(apply=True)
+    assert repeated["inserted"] == 0
+    assert repeated["already_present"] == 1
+    assert len(writes) == 1