diff --git a/sale_order_batch/models/sale_order_batch_product.py b/sale_order_batch/models/sale_order_batch_product.py
index 3f07556..1c4b327 100644
--- a/sale_order_batch/models/sale_order_batch_product.py
+++ b/sale_order_batch/models/sale_order_batch_product.py
@@ -16,6 +16,7 @@ class SaleOrderBatchProduct(models.Model):
         copy=False,
         readonly=True,
     )
+    state = fields.Selection(related="batch_id.state")
     product_id = fields.Many2one(comodel_name="product.product", required=True, readonly=True)
     product_template_id = fields.Many2one(
         "product.template", related="product_id.product_tmpl_id", string="Product Template"
diff --git a/sale_order_batch/views/sale_order_batch_product_views.xml b/sale_order_batch/views/sale_order_batch_product_views.xml
index 20bff33..ee5d099 100644
--- a/sale_order_batch/views/sale_order_batch_product_views.xml
+++ b/sale_order_batch/views/sale_order_batch_product_views.xml
@@ -23,10 +23,11 @@
                     </group>
                     <notebook>
                          <page string="Sale Order Lines" name="order_line">
+                            <field name="state" invisible="1"/>
                             <field
                                 name="sale_order_line_ids"
                                 widget="section_and_note_one2many"
-                                attrs="{'readonly': [('state', 'in', ('closed'))]}"
+                                attrs="{'readonly': [('state', '=', 'closed')]}"
                             >
                                 <tree editable="bottom" create="0">
                                     <field name="company_id" invisible="1"/>