diff --git a/addons/purchase_requisition/models/purchase.py b/addons/purchase_requisition/models/purchase.py
index 7c7e2e6f1dd..6af1f3f0cb3 100644
--- a/addons/purchase_requisition/models/purchase.py
+++ b/addons/purchase_requisition/models/purchase.py
@@ -84,7 +84,8 @@ class PurchaseOrder(models.Model):
             if po.requisition_id.type_id.exclusive == 'exclusive':
                 others_po = po.requisition_id.mapped('purchase_ids').filtered(lambda r: r.id != po.id)
                 others_po.button_cancel()
-                po.requisition_id.action_done()
+                if po.state not in ['draft', 'sent', 'to approve']:
+                    po.requisition_id.action_done()
         return res
 
     @api.model