diff --git a/app/adapters/delivery_providers/cse/order_mapper.py b/app/adapters/delivery_providers/cse/order_mapper.py
index 4680262..02b3ab8 100644
--- a/app/adapters/delivery_providers/cse/order_mapper.py
+++ b/app/adapters/delivery_providers/cse/order_mapper.py
@@ -3,7 +3,7 @@
 import base64
 import binascii
 from dataclasses import dataclass
-from datetime import datetime, timedelta
+from datetime import timedelta
 
 from app.adapters.delivery_providers.cse.constants import (
     resolve_cse_geography,
@@ -15,8 +15,7 @@ from app.schemas.payment import Address, InitPaymentRequest
 from app.schemas.request import DeliveryCalculationRequest
 
 _DATETIME_FORMAT = "%Y-%m-%dT%H:%M:%S"
-_INTERVAL_END_HOUR = 18
-_MIN_INTERVAL_HOURS = 1
+_DELIVERY_DATE_OFFSET_DAYS = 7
 
 
 @dataclass(frozen=True)
@@ -121,12 +120,15 @@ def map_cse_save_order_request(
     params: CSEOrderRegistrationParams,
 ) -> dict[str, Element]:
     system_data = request.system_data
-    take_date, take_date_of = _datetime_interval(request.pickup_date)
+    take_date = request.pickup_date.strftime(_DATETIME_FORMAT)
+    delivery_date = (
+        request.pickup_date + timedelta(days=_DELIVERY_DATE_OFFSET_DAYS)
+    ).strftime(_DATETIME_FORMAT)
     delivery_type, _, urgency = split_tariff_code(system_data.tariff.tariff_code)
 
     fields = [
         make_field("TakeDate", take_date, "dateTime"),
-        make_field("TakeDateOf", take_date_of, "dateTime"),
+        make_field("TakeDateOf", take_date, "dateTime"),
         make_field("Sender", request.sender_contact.full_name),
         make_field(
             "SenderGeography",
@@ -153,16 +155,7 @@ def map_cse_save_order_request(
     if delivery_type:
         fields.append(make_field("DeliveryOfCargo", delivery_type))
 
-    if request.delivery_date is not None:
-        delivery_date, delivery_date_of = _datetime_interval(request.delivery_date)
-        fields.append(
-            make_field(
-                "DeliveryDate",
-                delivery_date,
-                "dateTime",
-            )
-        )
-        fields.append(make_field("DeliveryDateOf", delivery_date_of, "dateTime"))
+    fields.append(make_field("DeliveryDate", delivery_date, "dateTime"))
     if request.content.description:
         fields.append(make_field("CargoDescription", request.content.description))
         fields.append(make_field("Comment", request.content.description))
@@ -191,18 +184,6 @@ def map_cse_save_order_request(
     }
 
 
-def _datetime_interval(value: datetime) -> tuple[str, str]:
-    interval_end = value.replace(
-        hour=_INTERVAL_END_HOUR,
-        minute=0,
-        second=0,
-        microsecond=0,
-    )
-    if interval_end <= value:
-        interval_end = value + timedelta(hours=_MIN_INTERVAL_HOURS)
-    return value.strftime(_DATETIME_FORMAT), interval_end.strftime(_DATETIME_FORMAT)
-
-
 def map_cse_save_order_response(root: Element) -> CSEOrderRegistrationResult:
     for document in root.items:
         number = document.property_value("Number")
diff --git a/tests/adapters/delivery_providers/cse/test_cse_adapter.py b/tests/adapters/delivery_providers/cse/test_cse_adapter.py
index 5dcc8d3..0129a14 100644
--- a/tests/adapters/delivery_providers/cse/test_cse_adapter.py
+++ b/tests/adapters/delivery_providers/cse/test_cse_adapter.py
@@ -656,8 +656,9 @@ def test_save_order_request_uses_selected_tariff_urgency() -> None:
     assert order.field_value("CargoCost") == "50000"
 
 
-def test_save_order_request_sends_pickup_and_delivery_intervals() -> None:
+def test_save_order_request_uses_pickup_date_plus_seven_days_as_delivery_date() -> None:
     request = make_init_payment_request(
+        deliveryDate="2026-05-18T18:00:00.000Z",
         systemData={
             "tariff": {
                 "provider": "cse",
@@ -670,16 +671,14 @@ def test_save_order_request_sends_pickup_and_delivery_intervals() -> None:
             "parcelType": "parcel",
             "weight": "1.0",
             "dimensions": {"length": "10", "width": "10", "height": "10"},
-        }
+        },
     )
 
     body = order_mapper.map_cse_save_order_request(request, "order-uuid-1", _params())
     order = body["data"].items[0]
 
     assert order.field_value("TakeDate") == "2026-05-15T10:00:00"
-    assert order.field_value("TakeDateOf") == "2026-05-15T18:00:00"
-    assert order.field_value("DeliveryDate") == "2026-05-18T18:00:00"
-    assert order.field_value("DeliveryDateOf") == "2026-05-18T19:00:00"
+    assert order.field_value("DeliveryDate") == "2026-05-22T10:00:00"
 
 
 def test_application_error_in_response_raises_request_error() -> None: