diff --git a/HISTORY.rst b/HISTORY.rst
index 11eed81c58c..1b6574569cd 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -22,6 +22,8 @@ Latest (unreleased)
 
 **Features and Improvements**
 
+* SO change validation button visibility/process given product_category
+
 **Bugfixes**
 
 **Build**
diff --git a/odoo/local-src/specific_sale/models/product.py b/odoo/local-src/specific_sale/models/product.py
index c9727bcd6c4..67ff6d2c249 100644
--- a/odoo/local-src/specific_sale/models/product.py
+++ b/odoo/local-src/specific_sale/models/product.py
@@ -12,3 +12,17 @@ class ProductTemplate(models.Model):
     is_ghost = fields.Boolean(
         string='Ghost Product',
     )
+
+
+class ProductCategory(models.Model):
+    _inherit = 'product.category'
+
+    engineering_validation_required = fields.Boolean(
+        string='Engineering Validation Required',
+    )
+    system_validation_required = fields.Boolean(
+        string='System Validation Required',
+    )
+    process_validation_required = fields.Boolean(
+        string='Process Validation Required',
+    )
diff --git a/odoo/local-src/specific_sale/models/sale_order.py b/odoo/local-src/specific_sale/models/sale_order.py
index 01d25d2fbad..c1e70ebc4d6 100644
--- a/odoo/local-src/specific_sale/models/sale_order.py
+++ b/odoo/local-src/specific_sale/models/sale_order.py
@@ -54,6 +54,21 @@ class SaleOrder(models.Model):
                 'cancel': [('required', False)]}
     )
     sales_condition_filename = fields.Char()
+    engineering_validation_required = fields.Boolean(
+        string='Engineering Validation Required',
+        compute="_compute_validation_required",
+        readonly=True,
+    )
+    system_validation_required = fields.Boolean(
+        string='System Validation Required',
+        compute='_compute_validation_required',
+        readonly=True,
+    )
+    process_validation_required = fields.Boolean(
+        string='Process Validation Required',
+        compute='_compute_validation_required',
+        readonly=True,
+    )
 
     @api.model
     def _setup_fields(self, partial):
@@ -104,6 +119,27 @@ def _create_analytic_account(self, prefix=None):
                  'project_market_id': order.project_market_id.id}
             )
 
+    @api.multi
+    @api.depends(
+        'order_line.product_id.categ_id', 'engineering_validation_id',
+        'system_validation_id', 'process_validation_id')
+    def _compute_validation_required(self):
+        for so in self:
+            for line in so.order_line:
+                cat = line.product_id.categ_id
+                # compute engineering_validation
+                if (cat.engineering_validation_required and
+                        not so.engineering_validation_id):
+                    so.engineering_validation_required = True
+                # compute system_validation_required
+                if (cat.system_validation_required and
+                        not so.system_validation_id):
+                    so.system_validation_required = True
+                # compute process_validation_required
+                if (cat.process_validation_required and
+                        not so.process_validation_id):
+                    so.process_validation_required = True
+
     @api.onchange('opportunity_id')
     def onchange_opportunity_id(self):
         if self.opportunity_id:
@@ -174,9 +210,9 @@ def _check_sales_condition(self):
     @api.multi
     def _check_validators(self):
         for so in self:
-            if not (so.engineering_validation_id and
-                    so.system_validation_id and
-                    so.process_validation_id):
+            if (so.engineering_validation_required and
+                    so.system_validation_required and
+                    so.process_validation_required):
                 raise UserError(_('The Sale Order needs to be reviewed.'))
 
     @api.multi
diff --git a/odoo/local-src/specific_sale/views/product_views.xml b/odoo/local-src/specific_sale/views/product_views.xml
index 8b878ccebd7..786ec813fe3 100644
--- a/odoo/local-src/specific_sale/views/product_views.xml
+++ b/odoo/local-src/specific_sale/views/product_views.xml
@@ -15,4 +15,19 @@
     </field>
   </record>
 
+  <record id="product_category_validation_form_view" model="ir.ui.view">
+    <field name="name">product.category.form.validation</field>
+    <field name="model">product.category</field>
+    <field name="inherit_id" ref="product.product_category_form_view"/>
+    <field name="arch" type="xml">
+      <xpath expr='//group[@name="first"]' position="after">
+        <group name="validation" col='4' string='Validation'>
+          <field name='engineering_validation_required'/>
+          <field name='system_validation_required'/>
+          <field name='process_validation_required'/>
+        </group>
+      </xpath>
+    </field>
+  </record>
+
 </odoo>
diff --git a/odoo/local-src/specific_sale/views/sale_order_crm.xml b/odoo/local-src/specific_sale/views/sale_order_crm.xml
index 557ab14e337..2d1ed88c35a 100644
--- a/odoo/local-src/specific_sale/views/sale_order_crm.xml
+++ b/odoo/local-src/specific_sale/views/sale_order_crm.xml
@@ -15,21 +15,21 @@
                 class="btn-primary"
                 groups="specific_sale.rtl_eng_validation"
                 type="object"
-                attrs="{'invisible': [('engineering_validation_id', '!=', False)]}"/>
+                attrs="{'invisible': [('engineering_validation_required', '=', False)]}"/>
 
         <button name="action_validate_sys"
                 string="System Validation"
                 class="btn-primary"
                 groups="specific_sale.rtl_sys_manager"
                 type="object"
-                attrs="{'invisible': [('system_validation_id', '!=', False)]}"/>
+                attrs="{'invisible': [('system_validation_required', '=', False)]}"/>
 
         <button name="action_validate_pro"
                 string="Process Validation"
                 class="btn-primary"
                 groups="specific_sale.rtl_pro_manager"
                 type="object"
-                attrs="{'invisible': [('process_validation_id', '!=', False)]}"/>
+                attrs="{'invisible': [('process_validation_required', '=', False)]}"/>
       </header>
 
       <field name="validity_date" position="after">
@@ -80,6 +80,9 @@
         <page string="Internal Validation" name="roctool">
           <group>
             <group name="validation" string="Validation">
+              <field name='engineering_validation_required' invisible="True"/>
+              <field name='system_validation_required' invisible="True"/>
+              <field name='process_validation_required' invisible="True"/>
               <field name='engineering_validation_id'/>
               <field name='system_validation_id'/>
               <field name='process_validation_id'/>
diff --git a/odoo/migration.yml b/odoo/migration.yml
index b3bd1b2f117..de9bb1fffe5 100644
--- a/odoo/migration.yml
+++ b/odoo/migration.yml
@@ -178,3 +178,7 @@ migration:
       operations:
         post:
           - anthem songs.upgrade.10_0_14.intercompany::main
+    - version: 10.0.15
+      addons:
+        upgrade:
+          - specific_sale