diff --git a/services/ingestion/tests/fixtures/01_harvesting.csv b/services/ingestion/tests/fixtures/01_harvesting.csv
new file mode 100644
index 000000000..b6f611b3e
--- /dev/null
+++ b/services/ingestion/tests/fixtures/01_harvesting.csv
@@ -0,0 +1,4 @@
+traceability_lot_code,product_description,quantity,unit_of_measure,harvest_date,location_name,location_gln,field_id,harvester_name,reference_document
+LOT-ROM-2026-0312A,Organic Romaine Hearts,5000,lbs,2026-03-12,Salinas Valley Farms,0061414100014,FIELD-SVF-7,Salinas Valley Farms LLC,HARV-SVF-2026-0312-001
+LOT-ROM-2026-0312B,Chopped Romaine Mix,3200,lbs,2026-03-12,Salinas Valley Farms,0061414100014,FIELD-SVF-12,Salinas Valley Farms LLC,HARV-SVF-2026-0312-002
+LOT-ROM-2026-0311C,Romaine Hearts 3-Pack,4100,lbs,2026-03-11,Coastline Ridge Growers,0061414100021,FIELD-CRG-3,Coastline Ridge Growers Inc,HARV-SVF-2026-0312-003
diff --git a/services/ingestion/tests/fixtures/edi_corpus/asn_856.edi b/services/ingestion/tests/fixtures/edi_corpus/asn_856.edi
new file mode 100644
index 000000000..b1373c686
--- /dev/null
+++ b/services/ingestion/tests/fixtures/edi_corpus/asn_856.edi
@@ -0,0 +1 @@
+ISA*00*          *00*          *ZZ*SENDERID       *ZZ*RECEIVERID     *260310*1200*U*00401*000000001*0*P*>~GS*SH*SENDERID*RECEIVERID*20260310*1200*1*X*004010~ST*856*0001~BSN*00*ASN-12345*20260310*1200~HL*1**S~N1*SF*Valley Fresh Farms*92*6141410000014~N1*ST*Metro Distribution Center*92*6141410000069~LIN**SK*ROMAINE-12CT~SN1**200*CA~REF*BM*BOL-9001~TD5**2*ColdExpress~SE*10*0001~GE*1*1~IEA*1*000000001~
diff --git a/services/ingestion/tests/fixtures/edi_corpus/asn_856.expected.json b/services/ingestion/tests/fixtures/edi_corpus/asn_856.expected.json
new file mode 100644
index 000000000..fe350cd20
--- /dev/null
+++ b/services/ingestion/tests/fixtures/edi_corpus/asn_856.expected.json
@@ -0,0 +1,29 @@
+{
+  "asn_number": "ASN-12345",
+  "carrier": "2",
+  "control_number": "0001",
+  "envelope_mismatch": false,
+  "gs_control_number": "1",
+  "gs_receiver_id": "RECEIVERID",
+  "gs_sender_id": "SENDERID",
+  "isa13": "000000001",
+  "isa_receiver_id": "RECEIVERID",
+  "isa_sender_id": "SENDERID",
+  "line_items": [
+    {
+      "lot_number": null,
+      "product_description": "ROMAINE-12CT",
+      "quantity": 200.0,
+      "unit_of_measure": "CA"
+    }
+  ],
+  "receiver_id": "RECEIVERID",
+  "reference_document_number": "BOL-9001",
+  "sender_id": "SENDERID",
+  "ship_date_raw": "20260310",
+  "ship_from_gln": "6141410000014",
+  "ship_from_name": "Valley Fresh Farms",
+  "ship_time_raw": "1200",
+  "ship_to_gln": "6141410000069",
+  "ship_to_name": "Metro Distribution Center"
+}
diff --git a/services/ingestion/tests/test_r3_restored_fixtures_e2e.py b/services/ingestion/tests/test_r3_restored_fixtures_e2e.py
new file mode 100644
index 000000000..f5a30eb25
--- /dev/null
+++ b/services/ingestion/tests/test_r3_restored_fixtures_e2e.py
@@ -0,0 +1,157 @@
+"""End-to-end runs of the restored CSV and EDI fixtures.
+
+Each fixture goes through: ingest -> KDE/CTE checks -> data gap flags
+(``shared.data_gap_tracking``) -> FDA sortable spreadsheet. The run must
+finish within the 24 hours allowed by 21 CFR 1.1455(c)(1). The spreadsheet
+format is covered by 21 CFR 1.1455(c)(3)(ii).
+
+Fixtures were restored byte-for-byte under C.Lee's scoped exception to the
+real-data-only rule:
+- ``services/ingestion/tests/fixtures/01_harvesting.csv`` (originally
+  ``sample_data/01_harvesting.csv``, from a0911dc6^)
+- ``services/ingestion/tests/fixtures/edi_corpus/asn_856.edi`` and
+  ``asn_856.expected.json`` (from 2a8f4887^)
+
+No fixture values are invented or edited here. The EDI 856 carries no lot
+number (LIN/LT) and no ship date KDE, so it is expected to be rejected with
+open gaps and to contribute no spreadsheet rows.
+"""
+
+from __future__ import annotations
+
+import csv
+import io
+import json
+import sys
+from datetime import datetime, timedelta, timezone
+from pathlib import Path
+
+import pytest
+
+SERVICE = Path(__file__).resolve().parents[1]
+sys.path.insert(0, str(SERVICE))
+
+from app.csv_templates import parse_csv_rows  # noqa: E402
+from app.edi_ingestion import routes as edi_routes  # noqa: E402
+from app.edi_ingestion.extractors import _extract_fields_for_set  # noqa: E402
+from app.edi_ingestion.parser import _parse_x12_segments  # noqa: E402
+from app.edi_ingestion.validation import _validate_edi_as_fsma_event  # noqa: E402
+from app.fda_export_service import FDA_COLUMNS, _generate_csv  # noqa: E402
+from app.webhook_router_v2 import _validate_event_kdes  # noqa: E402
+from pydantic import ValidationError  # noqa: E402
+from shared.data_gap_tracking import (  # noqa: E402
+    GAP_KIND_MISSING_KDE,
+    decide_transition,
+    gaps_from_kde_errors,
+)
+
+CSV_FIXTURE = SERVICE / "tests" / "fixtures" / "01_harvesting.csv"
+EDI_DIR = SERVICE / "tests" / "fixtures" / "edi_corpus"
+SLA = timedelta(hours=24)  # 21 CFR 1.1455(c)(1)
+
+
+def _export_row(event, ingested_at: datetime) -> dict:
+    """Shape an accepted IngestEvent like a stored row for ``_generate_csv``."""
+    return {
+        "traceability_lot_code": event.traceability_lot_code,
+        "product_description": event.product_description,
+        "quantity": event.quantity,
+        "unit_of_measure": event.unit_of_measure,
+        "event_type": event.cte_type.value,
+        "event_timestamp": event.timestamp,
+        "location_gln": event.location_gln,
+        "location_name": event.location_name,
+        "kdes": dict(event.kdes),
+        "source": "fixture",
+        "ingested_at": ingested_at.isoformat(),
+    }
+
+
+def _run_pipeline(events):
+    """KDE check -> gap flags -> spreadsheet. Returns (gaps_by_tlc, csv_text)."""
+    ingested_at = datetime.now(timezone.utc)
+    gaps_by_tlc, accepted = {}, []
+    for event in events:
+        errors = _validate_event_kdes(event)
+        gaps = gaps_from_kde_errors(errors)
+        gaps_by_tlc[event.traceability_lot_code] = (decide_transition(gaps), gaps)
+        if not errors:
+            accepted.append(_export_row(event, ingested_at))
+    return gaps_by_tlc, _generate_csv(accepted), ingested_at
+
+
+def _parse_sheet(text: str):
+    reader = csv.DictReader(io.StringIO(text))
+    return reader.fieldnames, list(reader)
+
+
+def test_csv_harvesting_fixture_end_to_end():
+    """21 CFR 1.1455(c)(1): CSV harvest records reach the FDA spreadsheet within 24h."""
+    started = datetime.now(timezone.utc)
+    source = list(csv.DictReader(io.StringIO(CSV_FIXTURE.read_text(encoding="utf-8"))))
+
+    events, parse_errors, kde_warnings = parse_csv_rows(
+        CSV_FIXTURE.read_text(encoding="utf-8"), fallback_cte="harvesting"
+    )
+    assert parse_errors == [] and kde_warnings == []
+    assert len(events) == len(source)
+    assert {e.cte_type.value for e in events} == {"harvesting"}
+
+    gaps_by_tlc, sheet, _ = _run_pipeline(events)
+    assert all(state == ("close", ()) for state in gaps_by_tlc.values())
+
+    headers, rows = _parse_sheet(sheet)
+    assert headers == FDA_COLUMNS
+    assert [r["Traceability Lot Code (TLC)"] for r in rows] == [
+        s["traceability_lot_code"] for s in source
+    ]
+    for row, src in zip(rows, source):
+        assert row["Event Type (CTE)"].lower() == "harvesting"
+        assert row["Product Description"] == src["product_description"]
+        assert row["Location GLN"] == src["location_gln"]
+        assert row["Harvest Date"] == src["harvest_date"]
+        assert row["System Entry Timestamp"]
+
+    assert datetime.now(timezone.utc) - started <= SLA
+
+
+def test_edi_856_fixture_end_to_end():
+    """21 CFR 1.1455(c)(1): the EDI 856 run completes within 24h with its gaps flagged."""
+    started = datetime.now(timezone.utc)
+    raw = (EDI_DIR / "asn_856.edi").read_text(encoding="utf-8")
+    expected = json.loads((EDI_DIR / "asn_856.expected.json").read_text(encoding="utf-8"))
+
+    segments = _parse_x12_segments(raw)
+    extracted = _extract_fields_for_set("856", segments)
+    assert extracted == expected
+
+    # Same header/line merge as ingest_edi_document. The document's own
+    # identifier is the only TLC-like value it carries (no LIN/LT lot).
+    header = {k: v for k, v in extracted.items() if k != "line_items"}
+    lines = extracted["line_items"]
+    assert len(lines) == 1 and lines[0]["lot_number"] is None
+    merged = {**header, **lines[0], "edi_line_index": 1}
+    tlc = extracted["asn_number"]
+
+    with pytest.raises(ValidationError):
+        _validate_edi_as_fsma_event(merged, "856", tlc, None)
+
+    event = edi_routes._build_ingest_event_for_set(
+        "856", merged, tlc, None, None, None, None, segments=segments
+    )
+    assert event.cte_type.value == "shipping"
+    assert event.quantity == lines[0]["quantity"]
+    assert event.kdes["ship_from_gln"] == expected["ship_from_gln"]
+    assert event.kdes["ship_to_gln"] == expected["ship_to_gln"]
+
+    gaps_by_tlc, sheet, _ = _run_pipeline([event])
+    transition, gaps = gaps_by_tlc[tlc]
+    assert transition == "open"
+    assert {g.gap_kind for g in gaps} == {GAP_KIND_MISSING_KDE}
+    assert {"ship_date", "tlc_source_reference"} <= {g.gap_key for g in gaps}
+
+    headers, rows = _parse_sheet(sheet)
+    assert headers == FDA_COLUMNS
+    assert rows == []
+
+    assert datetime.now(timezone.utc) - started <= SLA