diff --git a/bp/cart/services/__init__.py b/bp/cart/services/__init__.py
index a297bbc..16e4278 100644
--- a/bp/cart/services/__init__.py
+++ b/bp/cart/services/__init__.py
@@ -2,7 +2,6 @@ from .get_cart import get_cart
 from .identity import current_cart_identity
 from .total import total
 from .clear_cart_for_order import clear_cart_for_order
-from .adopt_session_cart_for_user import adopt_session_cart_for_user
 from .calendar_cart import get_calendar_cart_entries, calendar_total
 from .check_sumup_status import check_sumup_status
 from .page_cart import (
diff --git a/bp/cart/services/adopt_session_cart_for_user.py b/bp/cart/services/adopt_session_cart_for_user.py
deleted file mode 100644
index 7c143a2..0000000
--- a/bp/cart/services/adopt_session_cart_for_user.py
+++ /dev/null
@@ -1,46 +0,0 @@
-from sqlalchemy import select, update, func
-
-from market.models.market import CartItem
-
-
-async def adopt_session_cart_for_user(session, user_id: int, session_id: str | None) -> None:
-    """
-    When a user logs in or registers:
-    - If there are cart items for this anonymous session, take them over.
-    - Replace any existing cart items for this user with the anonymous cart.
-    """
-
-    if not session_id:
-        return
-
-    # 1) Find anonymous cart items for this session
-    result = await session.execute(
-        select(CartItem)
-        .where(
-            CartItem.deleted_at.is_(None),
-            CartItem.user_id.is_(None),
-            CartItem.session_id == session_id,
-        )
-    )
-    anon_items = result.scalars().all()
-    if not anon_items:
-        # nothing to adopt
-        return
-
-    # 2) Soft-delete any existing cart for this user
-    await session.execute(
-        update(CartItem)
-        .where(
-            CartItem.deleted_at.is_(None),
-            CartItem.user_id == user_id,
-        )
-        .values(deleted_at=func.now())
-    )
-
-    # 3) Reassign anonymous cart items to the user
-    for ci in anon_items:
-        ci.user_id = user_id
-        # optional: you can keep the session_id as well, but user_id will take precedence
-        # ci.session_id = session_id
-
-    # No explicit commit here; caller's transaction will handle it