diff --git a/addons/inter_company_rules/models/res_company.py b/addons/inter_company_rules/models/res_company.py
index 2d7c4081a7a..bf8b19e461d 100644
--- a/addons/inter_company_rules/models/res_company.py
+++ b/addons/inter_company_rules/models/res_company.py
@@ -17,8 +17,8 @@ class res_company(models.Model):
         help="When a Sale Order or a Purchase Order is created by a multi company rule for this company, it will automatically validate it")
     intercompany_user_id = fields.Many2one("res.users", string="Inter Company User", default=SUPERUSER_ID,
         help="Responsible user for creation of documents triggered by intercompany rules.")
-    warehouse_id = fields.Many2one("stock.warehouse", string="Warehouse For Purchase Orders",
-        help="Default value to set on Purchase Orders that will be created based on Sale Orders made to this company")
+    warehouse_id = fields.Many2one("stock.warehouse", string="Warehouse For Purchase or Sale Orders",
+        help="Default value to set on Purchase Orders that will be created based on Sale Orders (and reciprocally) made to this company")
 
     @api.model
     def _find_company_from_partner(self, partner_id):
diff --git a/addons/inter_company_rules/views/inter_company_so_po_view.xml b/addons/inter_company_rules/views/inter_company_so_po_view.xml
index 92ab0bb1ee1..5d333263cfe 100644
--- a/addons/inter_company_rules/views/inter_company_so_po_view.xml
+++ b/addons/inter_company_rules/views/inter_company_so_po_view.xml
@@ -11,7 +11,10 @@
                         <group string="Inter-Company Rules">
                             <field name="so_from_po" attrs="{'invisible': [('auto_generate_invoices', '=', True)]}"/>
                             <field name="po_from_so" attrs="{'invisible': [('auto_generate_invoices', '=', True)]}"/>
-                            <field name="warehouse_id" attrs="{'required': [('po_from_so', '=', True)], 'invisible': [('po_from_so', '=', False)]}" domain="[('company_id', '=', active_id)]"/>
+                            <field name="warehouse_id"
+                                attrs="{'required': ['|', ('po_from_so', '=', True), ('so_from_po', '=', True)],
+                                        'invisible': [('po_from_so', '=', False), ('so_from_po', '=', False)]}"
+                                domain="[('company_id', '=', active_id)]"/>
                             <field name="auto_validation" attrs="{'invisible': [('auto_generate_invoices', '=', True)]}"/>
                             <field name="auto_generate_invoices" attrs="{'invisible': ['|', ('so_from_po', '=', True), ('po_from_so', '=', True)]}"/>
                             <field name="intercompany_user_id" colspan="2" attrs="{'required': ['|','|',('so_from_po', '=', True), ('po_from_so', '=', True), ('auto_generate_invoices', '=', True)]}"/>