diff --git a/models/acc_counter.py b/models/acc_counter.py
index 9d5a57186b342799831c216fd0e911687574f7e8..bc41ef6bd5cf9f6c7ae3d578c3f443748f4f95b3 100644
--- a/models/acc_counter.py
+++ b/models/acc_counter.py
@@ -3,6 +3,8 @@
 
 from odoo import api, fields, models
 
+from odoo.exceptions import ValidationError
+
 
 class AccCounter(models.Model):
     _name = "acc.counter"
@@ -12,7 +14,7 @@ class AccCounter(models.Model):
     # Fields declaration
     # ------------------------------------------------------
     # General Info
-    name = fields.Char("ID PRM", required=True)
+    name = fields.Char("ID PRM", required=True, index=True)
     acc_operation_id = fields.Many2one("acc.operation", string="Opération liée")
     date_start_contract = fields.Date("Date de début", default=fields.Datetime.now)
     date_end_contract = fields.Date("Date de fin", default=fields.Datetime.now)
@@ -26,6 +28,7 @@ class AccCounter(models.Model):
         domain="['|', ('is_consumer', '=', True), ('is_producer', '=', True)]",
     )
 
+    test = fields.Char("test")
     # Info Soutirage counter
     is_delivery = fields.Boolean("Est un point de soutirage")
     power_delivery = fields.Float("Puissance soutirage (en kW)")
@@ -44,10 +47,20 @@ class AccCounter(models.Model):
         string="Acheteur de surplus",
         domain="[('is_buyer_surplus', '=', True)]",
     )
+
     # ------------------------------------------------------
     # SQL Constraints
     # ------------------------------------------------------
+    _sql_constraints = [("name", "unique(name)", "L'ID PRM exite déjà !")]
 
+    @api.constrains('name')
+    def _check_name(self):
+        for record in self:
+            if record.name:
+                prm_ids = self.search_count(
+                    [('name', '=', record.name)])
+                if prm_ids > 0:
+                    raise ValidationError("L'ID PRM exite déjà !")
     # ------------------------------------------------------
     # Default methods
     # ------------------------------------------------------