diff --git a/wizard/acc_operation_import_wizard.py b/wizard/acc_operation_import_wizard.py
index 02996ce19fd1fdb6bd4d76bf4f14e3b6ac8b9eac..2a160a87890c683006eaa180a3f3e095ea051842 100644
--- a/wizard/acc_operation_import_wizard.py
+++ b/wizard/acc_operation_import_wizard.py
@@ -3,6 +3,7 @@
 import base64
 import csv
 import io
+import logging
 from datetime import datetime, timedelta
 
 from dateutil.relativedelta import relativedelta
@@ -13,6 +14,8 @@ from odoo.osv import expression
 from odoo.addons.api_connector.tools.date_utils import local_to_utc
 from odoo.addons.oacc.models.acc_enedis_cdc_day import COMP_DATA_TYPE_MAP
 
+_logger = logging.getLogger(__name__)
+
 
 class AccOperationImportWizard(models.TransientModel):
     _name = "acc.operation.import.wizard"
@@ -83,16 +86,26 @@ class AccOperationImportWizard(models.TransientModel):
             ("acc_operation_id", "=", self.operation_id.id),
             ("acc_counter_id", "=", counter_id),
         ]
-        domain_cdc = expression.AND([domain_all, [
-            ("date_slot", ">=", start_datetime),
-            ("date_slot", "<", end_datetime),
-            ("comp_data_type", "=", computed_data_type),
-        ]])
-        domain_cdc_day = expression.AND([domain_all, [
-            ("date_slot", ">=", date_begin_obj.date()),
-            ("date_slot", "<", date_end_obj.date()),
-            ("comp_data_type", "=", COMP_DATA_TYPE_MAP[computed_data_type]),
-        ]])
+        domain_cdc = expression.AND(
+            [
+                domain_all,
+                [
+                    ("date_slot", ">=", start_datetime),
+                    ("date_slot", "<", end_datetime),
+                    ("comp_data_type", "=", computed_data_type),
+                ],
+            ]
+        )
+        domain_cdc_day = expression.AND(
+            [
+                domain_all,
+                [
+                    ("date_slot", ">=", date_begin_obj.date()),
+                    ("date_slot", "<", date_end_obj.date()),
+                    ("comp_data_type", "=", COMP_DATA_TYPE_MAP[computed_data_type]),
+                ],
+            ]
+        )
         rec_ids = self.env[self.model].search(domain_cdc)
         if rec_ids:
             message += "Suppression des enregistrements existants de courbes ... <br/>"
@@ -102,11 +115,15 @@ class AccOperationImportWizard(models.TransientModel):
         if self.model == "acc.enedis.cdc":
             day_rec_ids = self.env["acc.enedis.cdc.day"].search(domain_cdc_day)
             if day_rec_ids:
-                message += "Suppression des enregistrements existants de courbes "\
+                message += (
+                    "Suppression des enregistrements existants de courbes "
                     "agrégées au jour ... <br/>"
+                )
                 day_rec_ids.unlink()
-                message += "Suppression des enregistrements existants de courbes "\
+                message += (
+                    "Suppression des enregistrements existants de courbes "
                     "agrégées au jour OK <br/>"
+                )
 
         return message
 
@@ -118,9 +135,9 @@ class AccOperationImportWizard(models.TransientModel):
         date_end_str = data_filename[2]
         date_format = "%d%m%Y"
         date_begin_obj = datetime.strptime(date_begin_str, date_format).date()
-        date_end_obj = datetime.strptime(date_end_str, date_format) + relativedelta(
-            days=1
-        ).date()
+        date_end_obj = (
+            datetime.strptime(date_end_str, date_format) + relativedelta(days=1).date()
+        )
         # Update partner_id for retrieved cdc
         domain = [
             ("acc_operation_id", "=", self.operation_id.id),
@@ -150,6 +167,7 @@ class AccOperationImportWizard(models.TransientModel):
         )
 
         for file in self.attachment_ids:
+            _logger.debug(f"Processing file {file.name} - Start")
             message += (
                 "<p><strong>Fichier "
                 + file.name
@@ -215,11 +233,14 @@ class AccOperationImportWizard(models.TransientModel):
                         }
                     )
 
+            _logger.debug(f"Processing file {file.name} - Curves creation")
             message += "Création des courbes<br/>"
             self.create_curve(curves_to_create)
+            _logger.debug(f"Processing file {file.name} - Update partner_id on curves")
             message += "Mise à jour du contact associé aux courbes<br/>"
             self._update_partner_id(data_filename, counter_id)
 
+            _logger.debug(f"Processing file {file.name} - Generating daily curves")
             message += "Génération des données agrégées au jour<br/>"
             self.env["acc.enedis.cdc.day"].generate(
                 acc_operation_id=self.operation_id.id,
@@ -230,11 +251,11 @@ class AccOperationImportWizard(models.TransientModel):
 
             message += "Fin de l'import des données OK<br/>"
             # Suppression du fichier après création des enregistrements
+            _logger.debug(f"Processing file {file.name} - Remove file")
             message += "Suppression du fichier " + file.name + " ...<br/>"
             file.unlink()
             message += "Suppression OK </p>"
 
-
         message += "<h1>Fin import manuel: " + str(fields.Datetime.now()) + "</h1>"
         # Logs information logs
         log_id = self.env["acc.logs"].create(