diff --git a/backend/geonature/core/gn_commons/models/base.py b/backend/geonature/core/gn_commons/models/base.py
index aa25ff0ffd..2c3bfc583e 100644
--- a/backend/geonature/core/gn_commons/models/base.py
+++ b/backend/geonature/core/gn_commons/models/base.py
@@ -233,6 +233,21 @@ class TValidations(DB.Model):
         overlaps="nomenclature_valid_status",  # overlaps expected
     )
 
+    def auto_validation(fct_auto_validation):
+        stmt = f"""
+            select routine_name, routine_schema 
+            from information_schema.routines 
+            where routine_name= '{fct_auto_validation}'
+            and routine_type='FUNCTION';
+         """
+        result = DB.session.execute(stmt).fetchall()
+        if len(result) == 0:
+            return
+        stmt_auto_validation = f"SELECT gn_profiles.{fct_auto_validation}()"
+        list_synthese_updated = DB.session.execute(stmt_auto_validation).fetchall()[0]
+        # DB.session.query(func.gn_profiles.fct_auto_validation())
+        return list_synthese_updated
+
 
 last_validation_query = (
     select(TValidations)
diff --git a/backend/geonature/core/gn_commons/routes.py b/backend/geonature/core/gn_commons/routes.py
index a7377a1ff8..ec683fed4c 100644
--- a/backend/geonature/core/gn_commons/routes.py
+++ b/backend/geonature/core/gn_commons/routes.py
@@ -26,6 +26,7 @@
 from geonature.core.gn_permissions.decorators import login_required
 from geonature.core.gn_permissions.tools import get_scope
 import geonature.core.gn_commons.tasks  # noqa: F401
+import gn_module_validation.tasks
 
 from shapely.geometry import shape
 from geoalchemy2.shape import from_shape
diff --git a/backend/geonature/migrations/versions/9a4b4b6f8fe6_add_fct_auto_validation.py b/backend/geonature/migrations/versions/9a4b4b6f8fe6_add_fct_auto_validation.py
new file mode 100644
index 0000000000..b57fa78f70
--- /dev/null
+++ b/backend/geonature/migrations/versions/9a4b4b6f8fe6_add_fct_auto_validation.py
@@ -0,0 +1,102 @@
+"""add_fct_auto_validation
+
+Revision ID: 9a4b4b6f8fe6
+Revises: 446e902a14e7
+Create Date: 2023-10-25 17:18:04.438706
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "9a4b4b6f8fe6"
+down_revision = "446e902a14e7"
+branch_labels = None
+depends_on = None
+
+schema = "gn_profiles"
+fct_name = "fct_auto_validation"
+
+
+def upgrade():
+    op.execute(
+        f"""
+create or replace function {schema}.{fct_name} (
+        new_validation_status varchar default 'Probable',
+        score int default 3
+    ) returns integer [] language plpgsql as $function$
+declare old_validation_status text := 'En attente de validation';
+new_id_status_validation int := (
+    select tn.id_nomenclature
+    from ref_nomenclatures.t_nomenclatures tn
+    where tn.mnemonique = new_validation_status
+);
+old_id_status_validation int := (
+    select tn.id_nomenclature
+    from ref_nomenclatures.t_nomenclatures tn
+    where tn.mnemonique = old_validation_status
+);
+list_uuid_obs_status_updatable uuid [] := (
+    select array_agg(vlv.uuid_attached_row)
+    from gn_commons.v_latest_validation vlv
+        join gn_profiles.v_consistancy_data vcd on vlv.uuid_attached_row = vcd.id_sinp
+        and (
+            (
+                vcd.valid_phenology::int + vcd.valid_altitude::int + vcd.valid_distribution::int
+            ) = score
+        )
+    where vlv.id_nomenclature_valid_status = old_id_status_validation
+        and validation_auto = true
+        and id_validator is null
+);
+list_uuid_validation_to_update uuid [] := array (
+    select t.uuid_attached_row
+    from (
+            select distinct on (uuid_attached_row) uuid_attached_row,
+                id_validation,
+                validation_date
+            from gn_commons.t_validations tv
+            where uuid_attached_row = any (list_uuid_obs_status_updatable)
+            order by uuid_attached_row,
+                validation_date desc
+        ) as t
+);
+list_id_sythese_updated int [] := array (
+    select s.id_synthese
+    from gn_synthese.synthese s
+    where s.unique_id_sinp = any (list_uuid_validation_to_update)
+);
+_schema_name text = 'gn_commons';
+_table_name text = 't_validations';
+indx int;
+begin if array_length(list_uuid_validation_to_update, 1) > 0 then for indx in 1..array_length(list_uuid_validation_to_update, 1) loop raise notice 'Mise à jour du status  % --> %,  pour l''uuid_attached_row : % dans la table %.% ( id_synthese = % )',
+old_validation_status,
+new_validation_status,
+list_uuid_validation_to_update [indx],
+_schema_name,
+_table_name,
+list_id_sythese_updated [indx];
+execute format(
+    '
+    INSERT INTO %I.%I (uuid_attached_row, id_nomenclature_valid_status, validation_auto, id_validator, validation_comment, validation_date)
+    VALUES  ($1, $2 ,false, null,''auto = default value'',CURRENT_TIMESTAMP)',
+    _schema_name,
+    _table_name
+) using list_uuid_validation_to_update [indx],
+new_id_status_validation;
+end loop;
+end if;
+return list_id_sythese_updated;
+end;
+$function$;
+    """
+    )
+
+
+def downgrade():
+    op.execute(
+        f"""
+            DROP FUNCTION {schema}.{fct_name}
+        """
+    )
diff --git a/contrib/gn_module_validation/backend/gn_module_validation/conf_schema_toml.py b/contrib/gn_module_validation/backend/gn_module_validation/conf_schema_toml.py
index 3503301ebf..0eeb59128e 100644
--- a/contrib/gn_module_validation/backend/gn_module_validation/conf_schema_toml.py
+++ b/contrib/gn_module_validation/backend/gn_module_validation/conf_schema_toml.py
@@ -83,3 +83,7 @@ class GnModuleSchemaConf(Schema):
     MAIL_BODY = fields.String(load_default=MAIL_BODY)
     MAIL_SUBJECT = fields.String(load_default=MAIL_SUBJECT)
     COLUMN_LIST = fields.List(fields.Nested(ColumnSchema), load_default=COLUMN_LIST)
+    AUTO_VALIDATION_CRONTAB = fields.String(load_default="* 1 * * *")
+    AUTO_VALIDATION_ENABLED = fields.Boolean(load_default=False)
+    AUTO_VALIDATION_SQL_FUNCTION = fields.String(load_default="fct_auto_validation")
+
diff --git a/contrib/gn_module_validation/backend/gn_module_validation/tasks.py b/contrib/gn_module_validation/backend/gn_module_validation/tasks.py
new file mode 100644
index 0000000000..307280dd4b
--- /dev/null
+++ b/contrib/gn_module_validation/backend/gn_module_validation/tasks.py
@@ -0,0 +1,39 @@
+from celery.schedules import crontab
+from celery.utils.log import get_task_logger
+
+from geonature.core.gn_commons.models import TValidations
+from geonature.utils.celery import celery_app
+from geonature.utils.config import config
+
+logger = get_task_logger(__name__)
+
+
+@celery_app.on_after_finalize.connect
+def setup_periodic_tasks(sender, **kwargs):
+    is_enabled = config["VALIDATION"]["AUTO_VALIDATION_ENABLED"]
+    ct = config["VALIDATION"]["AUTO_VALIDATION_CRONTAB"]
+    if ct and is_enabled:
+        minute, hour, day_of_month, month_of_year, day_of_week = ct.split(" ")
+        sender.add_periodic_task(
+            crontab(
+                minute=minute,
+                hour=hour,
+                day_of_week=day_of_week,
+                day_of_month=day_of_month,
+                month_of_year=month_of_year,
+            ),
+            set_auto_validation.s(),
+            name="auto validation",
+        )
+
+
+@celery_app.task(bind=True)
+def set_auto_validation(self):
+    is_enabled = config["VALIDATION"]["AUTO_VALIDATION_ENABLED"]
+    fct_auto_validation_name  = config["VALIDATION"]['AUTO_VALIDATION_SQL_FUNCTION']
+    if is_enabled:
+        logger.info("Set autovalidation...")
+        TValidations.auto_validation(fct_auto_validation_name)
+        logger.info("Auto validation done")
+
+
diff --git a/contrib/gn_module_validation/setup.py b/contrib/gn_module_validation/setup.py
index 893582f2f8..e1adf3dbda 100644
--- a/contrib/gn_module_validation/setup.py
+++ b/contrib/gn_module_validation/setup.py
@@ -30,6 +30,7 @@
             "blueprint = gn_module_validation.blueprint:blueprint",
             "config_schema = gn_module_validation.conf_schema_toml:GnModuleSchemaConf",
             "migrations = gn_module_validation:migrations",
+            "tasks = gn_module_validation.tasks",
         ],
     },
     classifiers=[
diff --git a/contrib/gn_module_validation/validation_config.toml.example b/contrib/gn_module_validation/validation_config.toml.example
index 55cd31c968..d691458f15 100644
--- a/contrib/gn_module_validation/validation_config.toml.example
+++ b/contrib/gn_module_validation/validation_config.toml.example
@@ -1,25 +1,10 @@
-[[COLUMN_LIST]]
-column_label = "Taxon"
-column_name = "taxref.nom_vern_or_lb_nom"
-min_width = 250
+# PARAMETRES CONFIG MODULE VALIDATION
 
-[[COLUMN_LIST]]
-column_label = "Date obs"
-column_name = "date_min"
-min_width = 100
+# FONCTION AUTO_VALIDATION A SURCOUCHER SI LA FONCTION DE BASE N'EST PAS ADAPATEE A VOTRE CAS D'USAGE
 
-[[COLUMN_LIST]]
-column_label = "Jeu de données"
-column_name = "dataset.dataset_name"
-max_width = 100
 
-[[COLUMN_LIST]]
-column_label = "Observateur"
-column_name = "observers"
-min_width = 100
+#AUTO_VALIDATION_CRONTAB = "* 1 * * *"
+#AUTO_VALIDATION_ENABLED = true
 
-# Exemple d’ajout d’une colonne supplémentaire
-#[[COLUMN_LIST]]
-#column_label = "Stade de vie"
-#column_name = "nomenclature_life_stage.label_default"
-#min_width = 50
+## CUSTOM NAME FUNCTION AUTO VALIDATION
+#AUTO_VALIDATION_SQL_FUNCTION = "fct_auto_validation"