diff --git a/apps/api/src/api/v1/platform/events.py b/apps/api/src/api/v1/platform/events.py
index bc4dccd6..2ea672dd 100644
--- a/apps/api/src/api/v1/platform/events.py
+++ b/apps/api/src/api/v1/platform/events.py
@@ -17,6 +17,7 @@ from src.core.awooop_operator_auth import (
     AwoooPOperatorPrincipal,
     verify_awooop_operator,
 )
+from src.core.context import clear_project_context, get_current_project_context, set_project_context
 from src.services.channel_event_dossier_service import (
     RecurrenceWorkItemHandoffKind,
     RecurrenceWorkItemMode,
@@ -37,6 +38,28 @@ from src.services.platform_operator_service import list_recent_channel_events
 router = APIRouter()
 
 
+class _BodyProjectContext:
+    """Temporarily promote body project_id into the request project context."""
+
+    def __init__(self, project_id: str | None) -> None:
+        self._project_id = project_id.strip() if project_id else None
+        self._tokens = None
+
+    def __enter__(self) -> None:
+        if not self._project_id:
+            return
+        current = get_current_project_context()
+        self._tokens = set_project_context(
+            project_id=self._project_id,
+            source="request.body",
+            request_id=current.get("request_id"),
+        )
+
+    def __exit__(self, exc_type, exc, tb) -> None:
+        if self._tokens is not None:
+            clear_project_context(self._tokens)
+
+
 class ChannelEventItem(BaseModel):
     event_id: UUID
     project_id: str
@@ -524,16 +547,17 @@ async def review_source_correlation_work_item(
     request: SourceCorrelationReviewDecisionRequest,
 ) -> dict[str, Any]:
     try:
-        return await fetch_source_correlation_review_decision(
-            project_id=request.project_id,
-            work_item_id=request.work_item_id,
-            decision=request.decision,
-            target_incident_id=request.target_incident_id,
-            reviewer_id=request.reviewer_id,
-            operator_note=request.operator_note,
-            provider=request.provider,
-            limit=request.limit,
-        )
+        with _BodyProjectContext(request.project_id):
+            return await fetch_source_correlation_review_decision(
+                project_id=request.project_id,
+                work_item_id=request.work_item_id,
+                decision=request.decision,
+                target_incident_id=request.target_incident_id,
+                reviewer_id=request.reviewer_id,
+                operator_note=request.operator_note,
+                provider=request.provider,
+                limit=request.limit,
+            )
     except RecurrenceWorkItemNotFoundError as exc:
         raise HTTPException(
             status_code=404,
@@ -555,14 +579,15 @@ async def apply_source_correlation_work_item(
     request: SourceCorrelationApplyRequest,
 ) -> dict[str, Any]:
     try:
-        return await fetch_source_correlation_apply(
-            project_id=request.project_id,
-            work_item_id=request.work_item_id,
-            reviewer_id=request.reviewer_id,
-            operator_note=request.operator_note,
-            provider=request.provider,
-            limit=request.limit,
-        )
+        with _BodyProjectContext(request.project_id):
+            return await fetch_source_correlation_apply(
+                project_id=request.project_id,
+                work_item_id=request.work_item_id,
+                reviewer_id=request.reviewer_id,
+                operator_note=request.operator_note,
+                provider=request.provider,
+                limit=request.limit,
+            )
     except RecurrenceWorkItemNotFoundError as exc:
         raise HTTPException(
             status_code=404,
diff --git a/apps/api/tests/test_platform_events_project_context.py b/apps/api/tests/test_platform_events_project_context.py
new file mode 100644
index 00000000..7b3dc95a
--- /dev/null
+++ b/apps/api/tests/test_platform_events_project_context.py
@@ -0,0 +1,98 @@
+from __future__ import annotations
+
+import pytest
+
+from src.api.v1.platform import events
+from src.core.context import (
+    clear_project_context,
+    get_current_project_context,
+    set_project_context,
+)
+
+
+@pytest.mark.asyncio
+async def test_source_correlation_review_uses_body_project_context(monkeypatch):
+    observed: dict[str, object] = {}
+
+    async def fake_fetch_source_correlation_review_decision(**kwargs):
+        observed["kwargs"] = kwargs
+        observed["context"] = get_current_project_context()
+        return {"review_record_status": "recorded"}
+
+    monkeypatch.setattr(
+        events,
+        "fetch_source_correlation_review_decision",
+        fake_fetch_source_correlation_review_decision,
+    )
+
+    tokens = set_project_context(
+        project_id=None,
+        source="request.project_id.missing",
+        request_id="request-123",
+    )
+    try:
+        response = await events.review_source_correlation_work_item(
+            events.SourceCorrelationReviewDecisionRequest(
+                project_id="awoooi",
+                work_item_id="source-evidence:sentry:canary",
+                decision="accepted",
+                target_incident_id="INC-20260505-25E744",
+            )
+        )
+        assert response == {"review_record_status": "recorded"}
+        assert observed["kwargs"]["project_id"] == "awoooi"
+        assert observed["context"] == {
+            "project_id": "awoooi",
+            "source": "request.body",
+            "request_id": "request-123",
+        }
+        assert get_current_project_context() == {
+            "project_id": None,
+            "source": "request.project_id.missing",
+            "request_id": "request-123",
+        }
+    finally:
+        clear_project_context(tokens)
+
+
+@pytest.mark.asyncio
+async def test_source_correlation_apply_uses_body_project_context(monkeypatch):
+    observed: dict[str, object] = {}
+
+    async def fake_fetch_source_correlation_apply(**kwargs):
+        observed["kwargs"] = kwargs
+        observed["context"] = get_current_project_context()
+        return {"apply_status": "applied"}
+
+    monkeypatch.setattr(
+        events,
+        "fetch_source_correlation_apply",
+        fake_fetch_source_correlation_apply,
+    )
+
+    tokens = set_project_context(
+        project_id=None,
+        source="request.project_id.missing",
+        request_id="request-456",
+    )
+    try:
+        response = await events.apply_source_correlation_work_item(
+            events.SourceCorrelationApplyRequest(
+                project_id="awoooi",
+                work_item_id="source-evidence:sentry:canary",
+            )
+        )
+        assert response == {"apply_status": "applied"}
+        assert observed["kwargs"]["project_id"] == "awoooi"
+        assert observed["context"] == {
+            "project_id": "awoooi",
+            "source": "request.body",
+            "request_id": "request-456",
+        }
+        assert get_current_project_context() == {
+            "project_id": None,
+            "source": "request.project_id.missing",
+            "request_id": "request-456",
+        }
+    finally:
+        clear_project_context(tokens)