diff --git a/gsy_framework/constants_limits.py b/gsy_framework/constants_limits.py
index 60ab9810..335e4e2e 100644
--- a/gsy_framework/constants_limits.py
+++ b/gsy_framework/constants_limits.py
@@ -257,6 +257,7 @@ class BalancingSettings:
     class SCMSettings:
         """Default settings for the community manager."""
         GRID_FEES_REDUCTION = 0.28
+        INTRACOMMUNITY_BASE_RATE_EUR = None
         MARKET_ALGORITHM = CoefficientAlgorithm.STATIC.value
         MARKET_ALGORITHM_LIMIT = RangeLimit(1, 3)
 
diff --git a/gsy_framework/enums.py b/gsy_framework/enums.py
index b2c445c7..8eb5de60 100644
--- a/gsy_framework/enums.py
+++ b/gsy_framework/enums.py
@@ -25,6 +25,7 @@ class CoefficientAlgorithm(Enum):
     STATIC = 1
     DYNAMIC = 2
     NO_COMMUNITY_SELF_CONSUMPTION = 3
+    LIVE_STREAM = 4
 
 
 class CloudCoverage(Enum):
diff --git a/gsy_framework/schema/avro_schemas/launch_simulation_settings.json b/gsy_framework/schema/avro_schemas/launch_simulation_settings.json
index 5c77efff..decd967c 100644
--- a/gsy_framework/schema/avro_schemas/launch_simulation_settings.json
+++ b/gsy_framework/schema/avro_schemas/launch_simulation_settings.json
@@ -25,7 +25,11 @@
     {"name": "settlement_market_enabled", "type": "boolean"},
     {"name": "relative_std_from_forecast_percent", "type": "float"},
     {"name": "bid_offer_match_algo", "type": "int"},
-    {"name": "scm_coefficient_algorithm", "type": "int"},
-    {"name": "type", "type": ["null","int"], "default":  "undefined"}
+    {"name": "type", "type": ["null","int"], "default":  "undefined"},
+    {"name": "scm_coefficient_algorithm", "type": ["null", "int"], "default":  "null"},
+    {"name": "scm", "type": [
+      "null",
+      {"type": "map", "values" : ["float", "int", "string", "null"], "default": {}}
+    ]}
   ]
 }
diff --git a/gsy_framework/schema/avro_schemas/simulation_state.json b/gsy_framework/schema/avro_schemas/simulation_state.json
index 6db429f2..b39ab695 100644
--- a/gsy_framework/schema/avro_schemas/simulation_state.json
+++ b/gsy_framework/schema/avro_schemas/simulation_state.json
@@ -278,13 +278,6 @@
               "name": "used_storage",
               "type": "float"
             },
-            {
-              "name": "used_history",
-              "type": {
-                "type": "map",
-                "values": "string"
-              }
-            },
             {
               "name": "charge_history",
               "type": {
@@ -303,7 +296,7 @@
               "name": "offered_history",
               "type": {
                 "type": "map",
-                "values": "float"
+                "values": ["string", "float"]
               }
             },
             {
diff --git a/gsy_framework/schemas.py b/gsy_framework/schemas.py
index 7eb7873d..fbc5f25b 100644
--- a/gsy_framework/schemas.py
+++ b/gsy_framework/schemas.py
@@ -418,8 +418,12 @@ class ApiClientConfigSchema:
                     "type": "string",
                     "enum": ["constant", "dynamic"]
                 },
+                "group_settings": {
+                    "type": "string",
+                    "enum": ["constant", "dynamic"]
+                },
             },
-            "required": ["start_date", "end_date", "slot_length", "currency", "coefficient_type"]
+            "required": ["start_date", "end_date", "slot_length", "currency"]
         },
         "grid": {"type": ["object"]}
     }
diff --git a/gsy_framework/sim_results/scm/bills.py b/gsy_framework/sim_results/scm/bills.py
index d2d5c362..a3ab74bb 100644
--- a/gsy_framework/sim_results/scm/bills.py
+++ b/gsy_framework/sim_results/scm/bills.py
@@ -31,6 +31,7 @@ def _empty_bills_dict() -> Dict:
             "sold_to_grid": 0.,
             "sold_to_community": 0.,
             "earned_from_grid": 0.,
+            "earned_from_community": 0.,
             "home_balance_kWh": 0.,
             "home_balance": 0.,
             "base_energy_bill_excl_revenue": 0.,
diff --git a/tests/schema/test_data/simulation_state_test_data.json b/tests/schema/test_data/simulation_state_test_data.json
index 290f0c08..9e91a5c4 100644
--- a/tests/schema/test_data/simulation_state_test_data.json
+++ b/tests/schema/test_data/simulation_state_test_data.json
@@ -121,10 +121,6 @@
     },
     "b5c21c73-e155-4bad-928f-53eb87f7b2dc": {
       "current_tick": 1440,
-      "used_history": {
-        "2023-05-23T22:00": "-",
-        "2023-05-23T23:00": "-"
-      },
       "used_storage": 0.12,
       "charge_history": {
         "2023-05-23T22:00": 10.0,
diff --git a/tests/schema/test_settings_validator.py b/tests/schema/test_settings_validator.py
index 813797ef..d6260000 100644
--- a/tests/schema/test_settings_validator.py
+++ b/tests/schema/test_settings_validator.py
@@ -34,7 +34,12 @@ def setup_method(self):
             "settlement_market_enabled": False,
             "relative_std_from_forecast_percent": 10.0,
             "bid_offer_match_algo": 1,
-            "scm_coefficient_algorithm": 1,
+            "scm": {
+                "name": "DEFAULT_STATIC",
+                "coefficient_algorithm": 2,
+                "grid_fees_reduction": 0.01,
+                "intracommunity_rate_base_eur": 0.5
+            },
             "type": 0
         }
 
@@ -62,7 +67,10 @@ def _assert_all_settings_values(settings: Dict, compare_timedeltas: bool):
         assert not settings["settlement_market_enabled"]
         assert settings["relative_std_from_forecast_percent"] == 10.0
         assert settings["bid_offer_match_algo"] == 1
-        assert settings["scm_coefficient_algorithm"] == 1
+        assert settings["scm"]["name"] == "DEFAULT_STATIC"
+        assert settings["scm"]["coefficient_algorithm"] == 2
+        assert isclose(settings["scm"]["grid_fees_reduction"], 0.01, rel_tol=0.0000001)
+        assert isclose(settings["scm"]["intracommunity_rate_base_eur"], 0.5, rel_tol=0.0000001)
         assert settings["type"] == 0
 
     def test_simulation_settings_validator_works(self):