diff --git a/config/cgm_worker/replacement_config.json b/config/cgm_worker/replacement_config.json
index b9c934a..3772c50 100644
--- a/config/cgm_worker/replacement_config.json
+++ b/config/cgm_worker/replacement_config.json
@@ -7,6 +7,10 @@
         "timeHorizon": {
             "Request_list": ["ID", "1D", "2D", "WK", "1D", "MO", "YR"]
         },
+        "month_ahead": {
+            "hours": ["07:30", "08:30", "09:30", "06:30", "05:30", "04:30"],
+            "business_type": ["1D"]
+        },
         "hours": [
             {
                 "hour": "00:30",
diff --git a/emf/loadflow_tool/replacement.py b/emf/loadflow_tool/replacement.py
index 581cbf7..df9782a 100644
--- a/emf/loadflow_tool/replacement.py
+++ b/emf/loadflow_tool/replacement.py
@@ -149,9 +149,9 @@ def make_lists_priority(timestamp, target_timehorizon, conf):
 
     # Month ahead requires separate replacement logic
     if target_timehorizon == 'MO':
-        hour_list_final = ['07:30', '08:30', '09:30', '06:30', '05:30', '04:30']
+        hour_list_final = [hour for hour in conf["month_ahead"]["hours"]]
         day_list_final = [get_first_monday_of_last_month(timestamp).strftime("%Y-%m-%d")]
-        business_list_final = ['1D']
+        business_list_final = conf["month_ahead"]['business_type']
 
     return hour_list_final, day_list_final, business_list_final