diff --git a/models/acc_operation.py b/models/acc_operation.py
index 7b6574c38d48c49fca3a23a0a1bf94680c20a60c..01557f9ac51ad238e81c81082a06579ab6766012 100644
--- a/models/acc_operation.py
+++ b/models/acc_operation.py
@@ -3,6 +3,7 @@
 
 import base64
 from datetime import datetime, timedelta, timezone
+from dateutil.relativedelta import relativedelta
 from io import StringIO
 
 import pandas as pd
@@ -134,6 +135,25 @@ class AccOperation(models.Model):
                     # reader = pd.read_csv(file_decode, header=None, delimiter=';')
                     reader = pd.read_csv(file_decode, header=None, delimiter=";")
 
+                    # Suppression des données avant import
+                    date_begin_str = data_filename[1]
+                    date_end_str = data_filename[2]
+                    date_format = "%d%m%Y"
+                    date_begin_obj = datetime.strptime(date_begin_str, date_format)
+                    date_end_obj = datetime.strptime(
+                        date_end_str, date_format
+                    ) + relativedelta(days=1)
+                    domain_all = [
+                        ("date_slot", ">=", date_begin_obj),
+                        ("date_slot", "<", date_end_obj),
+                        ("acc_operation_id", "=", operation.id),
+                        ("comp_data_type", "=", computed_data_type),
+                        ("acc_counter_id", "=", counter_id.id),
+                    ]
+                    rec_ids = self.env["acc.enedis.cdc"].search(domain_all)
+                    if rec_ids:
+                        rec_ids.unlink()
+
                     if data_filename[4] == "CDC.csv":
                         # Create Data for the CDC
                         for row in reader.values:
@@ -151,45 +171,31 @@ class AccOperation(models.Model):
                                 timezone.utc
                             ).replace(tzinfo=None)
 
-                            # Begin Check doublon
-                            domain_all = [
-                                ("date_slot", "=", slot_datetime_tz),
-                                ("acc_operation_id", "=", self.id),
-                                ("comp_data_type", "=", computed_data_type),
-                                ("acc_counter_id", "=", counter_id.id)
-                            ]
-
-                            acc_enedis_cdc_id = self.env["acc.enedis.cdc"].search(
-                                domain_all)
-                            # End check doublon
-
-                            if not acc_enedis_cdc_id:
-
-                                self.env["acc.enedis.cdc"].create(
-                                    {
-                                        "name": file.name,
-                                        "acc_operation_id": self.id,
-                                        "acc_counter_id": counter_id.id or False,
-                                        "comp_data_type": computed_data_type,
-                                        "power": row[1],
-                                        "date_slot": slot_datetime_tz,
-                                        "date_slot_utc": date_slot_utc,
-                                    }
-                                )
-                                # Create 2nd slot 30-60min
-                                self.env["acc.enedis.cdc"].create(
-                                    {
-                                        "name": file.name,
-                                        "acc_operation_id": self.id,
-                                        "acc_counter_id": counter_id.id or False,
-                                        "comp_data_type": computed_data_type,
-                                        "power": row[2],
-                                        "date_slot": slot_datetime_tz
-                                        + timedelta(minutes=30),
-                                        "date_slot_utc": date_slot_utc
-                                        + timedelta(minutes=30),
-                                    }
-                                )
+                            self.env["acc.enedis.cdc"].create(
+                                {
+                                    "name": file.name,
+                                    "acc_operation_id": self.id,
+                                    "acc_counter_id": counter_id.id or False,
+                                    "comp_data_type": computed_data_type,
+                                    "power": row[1],
+                                    "date_slot": slot_datetime_tz,
+                                    "date_slot_utc": date_slot_utc,
+                                }
+                            )
+                            # Create 2nd slot 30-60min
+                            self.env["acc.enedis.cdc"].create(
+                                {
+                                    "name": file.name,
+                                    "acc_operation_id": self.id,
+                                    "acc_counter_id": counter_id.id or False,
+                                    "comp_data_type": computed_data_type,
+                                    "power": row[2],
+                                    "date_slot": slot_datetime_tz
+                                    + timedelta(minutes=30),
+                                    "date_slot_utc": date_slot_utc
+                                    + timedelta(minutes=30),
+                                }
+                            )
 
                     # Logs information logs
                     self.env["acc.enedis.import.logs"].create(