diff --git a/gso/services/resource_manager.py b/gso/services/resource_manager.py
index b555c7c301a1c9d3445f85c9248d1ce13184679b..b9169a8b2959d42d632951c291978408ed197ae5 100644
--- a/gso/services/resource_manager.py
+++ b/gso/services/resource_manager.py
@@ -16,42 +16,30 @@ class InterfaceAllocationState(Enum):
     ALLOCATED = auto()
 
 
-def _dummy_router_interfaces(site_name) -> dict:
+def _dummy_router_interfaces():
     return {
-        "site": site_name,
         "lags": [],
         "physical": [{"name": f"ifc-{x}", "state": InterfaceAllocationState.AVAILABLE} for x in range(250)],
     }
 
 
-_DUMMY_SITES = {"site-a", "site-b", "site-c"}
-
 _DUMMY_INVENTORY = {
-    "fqdn-a": _dummy_router_interfaces("site-a"),
-    "fqdn-b": _dummy_router_interfaces("site-a"),
-    "fqdn-c": _dummy_router_interfaces("site-b"),
-    "fqdn-d": _dummy_router_interfaces("site-b"),
-    "fqdn-e": _dummy_router_interfaces("site-c"),
-    "fqdn-f": _dummy_router_interfaces("site-c"),
+    "fqdn-a": _dummy_router_interfaces(),
+    "fqdn-b": _dummy_router_interfaces(),
+    "fqdn-c": _dummy_router_interfaces(),
+    "fqdn-d": _dummy_router_interfaces(),
 }
 
 
-def import_new_site(new_site_name: str, oss_params=settings.OSSParams):
-    # TODO: this is a dummy implementation
-    assert new_site_name not in _DUMMY_SITES
-    _DUMMY_SITES.add(new_site_name)
-
-
-def import_new_router(new_router_fqdn: str, site_name: str, oss_params=settings.OSSParams):
+def import_new_router(new_router_fqdn: str, subscription_id: str, oss_params=settings.OSSParams):
     # TODO: this is a dummy implementation
 
-    # TODO: specify if this should be an error (and if not, what it means)
-    assert site_name in _DUMMY_SITES
+    # TODO: specifiy if this should be an error (and if now, what it means)
     assert new_router_fqdn not in _DUMMY_INVENTORY
-    _DUMMY_INVENTORY[new_router_fqdn] = _dummy_router_interfaces(site_name)
+    _DUMMY_INVENTORY[new_router_fqdn] = _dummy_router_interfaces()
 
 
-def next_lag(router_fqdn: str, oss_params=settings.OSSParams) -> str:
+def next_lag(router_fqdn: str, subscription_id: str, oss_params=settings.OSSParams) -> str:
     # TODO: this is a dummy implementation
 
     assert router_fqdn in _DUMMY_INVENTORY
@@ -85,7 +73,9 @@ def _find_physical(router_fqdn: str, interface_name: str) -> dict:
     raise AssertionError(f"interface {interface_name} not found on {router_fqdn}")
 
 
-def reserve_physical_interface(router_fqdn: str, interface_name: str, oss_params=settings.OSSParams):
+def reserve_physical_interface(
+    router_fqdn: str, interface_name: str, subscription_id: str, oss_params=settings.OSSParams
+):
     # TODO: this is a dummy implementation
 
     ifc = _find_physical(router_fqdn, interface_name)
diff --git a/test/test_resource_manager.py b/test/test_resource_manager.py
index 37e26fe78cb8b6a1d68702994b824c38c63820aa..34cf53506c94d37bc36cfbae31d6998cf88a7a30 100644
--- a/test/test_resource_manager.py
+++ b/test/test_resource_manager.py
@@ -11,26 +11,18 @@ def _random_string(n=None, letters=string.ascii_letters + string.digits + string
     return "".join(random.choices(letters, k=n))  # noqa: S311
 
 
-def test_new_site():
-    site_name = _random_string(10)
-    assert site_name not in resource_manager._DUMMY_SITES
-    resource_manager.import_new_site(new_site_name=site_name)
-    assert site_name in resource_manager._DUMMY_SITES
-
-
 def test_new_router():
-    site_name = _random_string(10)
-    resource_manager.import_new_site(new_site_name=site_name)
-
     router_name = _random_string(10)
     assert router_name not in resource_manager._DUMMY_INVENTORY
-    resource_manager.import_new_router(new_router_fqdn=router_name, site_name=site_name)
+    resource_manager.import_new_router(new_router_fqdn=router_name, subscription_id=_random_string(10))
     assert router_name in resource_manager._DUMMY_INVENTORY
 
 
 def test_new_lag():
     router_name = list(resource_manager._DUMMY_INVENTORY.keys())[0]
-    new_lags = {resource_manager.next_lag(router_fqdn=router_name) for _ in range(10)}
+    new_lags = {
+        resource_manager.next_lag(router_fqdn=router_name, subscription_id=_random_string(10)) for _ in range(10)
+    }
     assert len(new_lags) == 10
     assert new_lags <= set(resource_manager._DUMMY_INVENTORY[router_name]["lags"])
 
@@ -45,7 +37,9 @@ def test_physical_allocation_lifecycle_happy():
 
     interface_name = initial_available[0]
 
-    resource_manager.reserve_physical_interface(router_fqdn=router_name, interface_name=interface_name)
+    resource_manager.reserve_physical_interface(
+        router_fqdn=router_name, subscription_id=_random_string(10), interface_name=interface_name
+    )
 
     current_available = _interfaces()
     assert interface_name not in current_available