diff --git a/erpnext/stock/doctype/item/item.js b/erpnext/stock/doctype/item/item.js
index ff01a19be4..90921764c5 100644
--- a/erpnext/stock/doctype/item/item.js
+++ b/erpnext/stock/doctype/item/item.js
@@ -170,6 +170,35 @@ frappe.ui.form.on('Item Reorder', {
 	}
 })
 
+frappe.ui.form.on('Item Customer Detail', {
+	customer_items_add: function(frm, cdt, cdn) {
+		frappe.model.set_value(cdt, cdn, 'customer_group', "");
+	},
+	customer_name: function(frm, cdt, cdn) {
+		set_customer_group(frm, cdt, cdn);
+	},
+	customer_group: function(frm, cdt, cdn) {
+		if(set_customer_group(frm, cdt, cdn)){
+			frappe.msgprint(__("Changing Customer Group for the selected Customer is not allowed."));
+		}
+	}
+});
+
+var set_customer_group = function(frm, cdt, cdn) {
+	var row = frappe.get_doc(cdt, cdn);
+
+	if (!row.customer_name) {
+		return false;
+	}
+
+	frappe.model.with_doc("Customer", row.customer_name, function() {
+		var customer = frappe.model.get_doc("Customer", row.customer_name);
+		row.customer_group = customer.customer_group;
+		refresh_field("customer_group", cdn, "customer_items");
+	});
+	return true;
+}
+
 $.extend(erpnext.item, {
 	setup_queries: function(frm) {
 		frm.fields_dict['expense_account'].get_query = function(doc) {
diff --git a/erpnext/stock/doctype/item/item.json b/erpnext/stock/doctype/item/item.json
index 689089c74e..0c834c5532 100644
--- a/erpnext/stock/doctype/item/item.json
+++ b/erpnext/stock/doctype/item/item.json
@@ -44,6 +44,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -74,6 +75,7 @@
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+   "translatable": 0,
    "unique": 0
   },
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@@ -106,6 +108,7 @@
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+   "translatable": 0,
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@@ -139,6 +142,7 @@
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+   "translatable": 0,
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@@ -170,6 +174,7 @@
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+   "translatable": 0,
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@@ -199,6 +204,7 @@
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+   "translatable": 0,
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@@ -232,6 +238,7 @@
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+   "translatable": 0,
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@@ -262,6 +269,7 @@
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+   "translatable": 0,
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@@ -295,6 +303,7 @@
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+   "translatable": 0,
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@@ -323,6 +332,7 @@
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+   "translatable": 0,
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@@ -353,6 +363,7 @@
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@@ -387,6 +398,7 @@
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+   "translatable": 0,
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@@ -418,6 +430,7 @@
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@@ -449,6 +462,7 @@
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@@ -480,6 +494,7 @@
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@@ -542,6 +558,7 @@
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@@ -606,6 +624,7 @@
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+   "translatable": 0,
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@@ -636,6 +655,7 @@
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@@ -699,69 +720,72 @@
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-   "allow_on_submit": 0, 
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-   "fieldname": "sb_barcodes", 
-   "fieldtype": "Section Break", 
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-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Barcodes", 
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+   "allow_bulk_edit": 0,
+   "allow_on_submit": 0,
+   "bold": 0,
+   "collapsible": 0,
+   "columns": 0,
+   "fieldname": "sb_barcodes",
+   "fieldtype": "Section Break",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_standard_filter": 0,
+   "label": "Barcodes",
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+   "permlevel": 0,
+   "precision": "",
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-  }, 
+  },
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-   "fieldtype": "Table", 
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-   "in_standard_filter": 0, 
-   "label": "Barcodes", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "Item Barcode", 
-   "permlevel": 0, 
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-   "remember_last_selected_value": 0, 
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-   "search_index": 0, 
-   "set_only_once": 0, 
+   "allow_bulk_edit": 0,
+   "allow_on_submit": 0,
+   "bold": 0,
+   "collapsible": 0,
+   "columns": 0,
+   "fieldname": "barcodes",
+   "fieldtype": "Table",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_standard_filter": 0,
+   "label": "Barcodes",
+   "length": 0,
+   "no_copy": 0,
+   "options": "Item Barcode",
+   "permlevel": 0,
+   "precision": "",
+   "print_hide": 0,
+   "print_hide_if_no_value": 0,
+   "read_only": 0,
+   "remember_last_selected_value": 0,
+   "report_hide": 0,
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-  }, 
+  },
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    "allow_on_submit": 0,
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+   "translatable": 0,
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    "width": "50%"
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@@ -2161,6 +2228,7 @@
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-   "collapsible": 0,
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-   "fieldname": "is_sales_item",
-   "fieldtype": "Check",
-   "hidden": 0,
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-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
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-   "in_standard_filter": 0,
-   "label": "Is Sales Item",
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+   "bold": 0,
+   "collapsible": 0,
+   "columns": 0,
+   "default": "1",
+   "fieldname": "is_sales_item",
+   "fieldtype": "Check",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_standard_filter": 0,
+   "label": "Is Sales Item",
+   "length": 0,
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+   "permlevel": 0,
+   "precision": "",
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+   "depends_on": "",
+   "fieldname": "column_break3",
+   "fieldtype": "Column Break",
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+   "search_index": 0,
+   "set_only_once": 0,
+   "translatable": 0,
+   "unique": 0,
+   "width": "50%"
+  },
   {
    "allow_bulk_edit": 0,
    "allow_on_submit": 0,
@@ -2437,70 +2546,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
-   "unique": 0
-  },
-  {
-   "allow_bulk_edit": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
-   "depends_on": "",
-   "fieldname": "column_break3",
-   "fieldtype": "Column Break",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Customer Item Codes",
-   "length": 0,
-   "no_copy": 0,
-   "oldfieldtype": "Column Break",
-   "permlevel": 0,
-   "print_hide": 0,
-   "print_hide_if_no_value": 0,
-   "read_only": 0,
-   "remember_last_selected_value": 0,
-   "report_hide": 0,
-   "reqd": 0,
-   "search_index": 0,
-   "set_only_once": 0,
-   "unique": 0,
-   "width": "50%"
-  },
-  {
-   "allow_bulk_edit": 0,
-   "allow_on_submit": 0,
-   "bold": 0,
-   "collapsible": 0,
-   "columns": 0,
-   "depends_on": "",
-   "description": "",
-   "fieldname": "customer_items",
-   "fieldtype": "Table",
-   "hidden": 0,
-   "ignore_user_permissions": 0,
-   "ignore_xss_filter": 0,
-   "in_filter": 0,
-   "in_global_search": 0,
-   "in_list_view": 0,
-   "in_standard_filter": 0,
-   "label": "Customer Items",
-   "length": 0,
-   "no_copy": 0,
-   "options": "Item Customer Detail",
-   "permlevel": 0,
-   "print_hide": 0,
-   "print_hide_if_no_value": 0,
-   "read_only": 0,
-   "remember_last_selected_value": 0,
-   "report_hide": 0,
-   "reqd": 0,
-   "search_index": 0,
-   "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2533,6 +2579,71 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
+   "unique": 0
+  },
+  {
+   "allow_bulk_edit": 0,
+   "allow_on_submit": 0,
+   "bold": 0,
+   "collapsible": 1,
+   "columns": 0,
+   "fieldname": "customer_details",
+   "fieldtype": "Section Break",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_standard_filter": 0,
+   "label": "Customer Details",
+   "length": 0,
+   "no_copy": 0,
+   "permlevel": 0,
+   "precision": "",
+   "print_hide": 0,
+   "print_hide_if_no_value": 0,
+   "read_only": 0,
+   "remember_last_selected_value": 0,
+   "report_hide": 0,
+   "reqd": 0,
+   "search_index": 0,
+   "set_only_once": 0,
+   "translatable": 0,
+   "unique": 0
+  },
+  {
+   "allow_bulk_edit": 0,
+   "allow_on_submit": 0,
+   "bold": 0,
+   "collapsible": 0,
+   "columns": 0,
+   "depends_on": "",
+   "description": "",
+   "fieldname": "customer_items",
+   "fieldtype": "Table",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_standard_filter": 0,
+   "label": "Customer Items",
+   "length": 0,
+   "no_copy": 0,
+   "options": "Item Customer Detail",
+   "permlevel": 0,
+   "print_hide": 0,
+   "print_hide_if_no_value": 0,
+   "read_only": 0,
+   "remember_last_selected_value": 0,
+   "report_hide": 0,
+   "reqd": 0,
+   "search_index": 0,
+   "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2564,6 +2675,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2597,6 +2709,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2628,6 +2741,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2661,6 +2775,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2691,38 +2806,40 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
-   "allow_bulk_edit": 0, 
-   "allow_on_submit": 0, 
-   "bold": 0, 
-   "collapsible": 0, 
-   "columns": 0, 
-   "depends_on": "eval:(doc.inspection_required_before_purchase || doc.inspection_required_before_delivery)", 
-   "fieldname": "quality_inspection_template", 
-   "fieldtype": "Link", 
-   "hidden": 0, 
-   "ignore_user_permissions": 0, 
-   "ignore_xss_filter": 0, 
-   "in_filter": 0, 
-   "in_global_search": 0, 
-   "in_list_view": 0, 
-   "in_standard_filter": 0, 
-   "label": "Quality Inspection Template", 
-   "length": 0, 
-   "no_copy": 0, 
-   "options": "Quality Inspection Template", 
-   "permlevel": 0, 
-   "precision": "", 
-   "print_hide": 1, 
-   "print_hide_if_no_value": 0, 
-   "read_only": 0, 
-   "remember_last_selected_value": 0, 
-   "report_hide": 0, 
-   "reqd": 0, 
-   "search_index": 0, 
-   "set_only_once": 0, 
+   "allow_bulk_edit": 0,
+   "allow_on_submit": 0,
+   "bold": 0,
+   "collapsible": 0,
+   "columns": 0,
+   "depends_on": "eval:(doc.inspection_required_before_purchase || doc.inspection_required_before_delivery)",
+   "fieldname": "quality_inspection_template",
+   "fieldtype": "Link",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 0,
+   "in_global_search": 0,
+   "in_list_view": 0,
+   "in_standard_filter": 0,
+   "label": "Quality Inspection Template",
+   "length": 0,
+   "no_copy": 0,
+   "options": "Quality Inspection Template",
+   "permlevel": 0,
+   "precision": "",
+   "print_hide": 1,
+   "print_hide_if_no_value": 0,
+   "read_only": 0,
+   "remember_last_selected_value": 0,
+   "report_hide": 0,
+   "reqd": 0,
+   "search_index": 0,
+   "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2755,6 +2872,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2788,6 +2906,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2822,6 +2941,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2851,6 +2971,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2880,6 +3001,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2910,6 +3032,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2940,6 +3063,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -2971,6 +3095,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3002,6 +3127,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3033,6 +3159,7 @@
    "reqd": 0,
    "search_index": 1,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3065,6 +3192,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3097,6 +3225,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3127,6 +3256,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3155,6 +3285,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3187,6 +3318,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3219,6 +3351,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3250,6 +3383,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3280,6 +3414,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3311,6 +3446,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3341,6 +3477,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3371,6 +3508,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3402,6 +3540,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3434,6 +3573,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3465,6 +3605,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3497,6 +3638,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   },
   {
@@ -3528,6 +3670,7 @@
    "reqd": 0,
    "search_index": 0,
    "set_only_once": 0,
+   "translatable": 0,
    "unique": 0
   }
  ],
@@ -3543,7 +3686,7 @@
  "issingle": 0,
  "istable": 0,
  "max_attachments": 1,
- "modified": "2018-02-19 13:48:35.779089",
+ "modified": "2018-03-06 10:21:48.715529",
  "modified_by": "Administrator",
  "module": "Stock",
  "name": "Item",
@@ -3715,7 +3858,7 @@
  "read_only_onload": 0,
  "search_fields": "item_name,description,item_group,customer_code",
  "show_name_in_global_search": 1,
- "sort_field": "idx desc, modified desc",
+ "sort_field": "idx desc,modified desc",
  "sort_order": "DESC",
  "title_field": "item_name",
  "track_changes": 1,
diff --git a/erpnext/stock/doctype/item_customer_detail/item_customer_detail.json b/erpnext/stock/doctype/item_customer_detail/item_customer_detail.json
index 46d480e1aa..c0305a9d82 100644
--- a/erpnext/stock/doctype/item_customer_detail/item_customer_detail.json
+++ b/erpnext/stock/doctype/item_customer_detail/item_customer_detail.json
@@ -1,5 +1,6 @@
 {
  "allow_copy": 0, 
+ "allow_guest_to_view": 0,
  "allow_import": 0, 
  "allow_rename": 0, 
  "autoname": "hash", 
@@ -12,16 +13,20 @@
  "editable_grid": 1, 
  "fields": [
   {
+   "allow_bulk_edit": 0,
    "allow_on_submit": 0, 
    "bold": 1, 
    "collapsible": 0, 
+   "columns": 0,
    "fieldname": "customer_name", 
    "fieldtype": "Link", 
    "hidden": 0, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 1, 
+   "in_global_search": 0,
    "in_list_view": 1, 
+   "in_standard_filter": 0,
    "label": "Customer Name", 
    "length": 0, 
    "no_copy": 0, 
@@ -33,24 +38,62 @@
    "print_hide_if_no_value": 0, 
    "print_width": "180px", 
    "read_only": 0, 
+   "remember_last_selected_value": 0,
    "report_hide": 0, 
-   "reqd": 1, 
+   "reqd": 0,
    "search_index": 1, 
    "set_only_once": 0, 
+   "translatable": 0,
    "unique": 0, 
    "width": "180px"
   }, 
   {
+   "allow_bulk_edit": 0,
    "allow_on_submit": 0, 
+   "bold": 1,
+   "collapsible": 0,
+   "columns": 0,
+   "fieldname": "customer_group",
+   "fieldtype": "Link",
+   "hidden": 0,
+   "ignore_user_permissions": 0,
+   "ignore_xss_filter": 0,
+   "in_filter": 1,
+   "in_global_search": 0,
+   "in_list_view": 1,
+   "in_standard_filter": 0,
+   "label": "Customer Group",
+   "length": 0,
+   "no_copy": 0,
+   "options": "Customer Group",
+   "permlevel": 0,
+   "precision": "",
+   "print_hide": 0,
+   "print_hide_if_no_value": 0,
+   "read_only": 0,
+   "remember_last_selected_value": 0,
+   "report_hide": 0,
+   "reqd": 0,
+   "search_index": 0,
+   "set_only_once": 0,
+   "translatable": 0,
+   "unique": 0
+  },
+  {
+   "allow_bulk_edit": 0,
+   "allow_on_submit": 0,
    "bold": 0, 
    "collapsible": 0, 
+   "columns": 0,
    "fieldname": "ref_code", 
    "fieldtype": "Data", 
    "hidden": 0, 
    "ignore_user_permissions": 0, 
    "ignore_xss_filter": 0, 
    "in_filter": 1, 
+   "in_global_search": 0,
    "in_list_view": 1, 
+   "in_standard_filter": 0,
    "label": "Ref Code", 
    "length": 0, 
    "no_copy": 0, 
@@ -61,25 +104,27 @@
    "print_hide_if_no_value": 0, 
    "print_width": "120px", 
    "read_only": 0, 
+   "remember_last_selected_value": 0,
    "report_hide": 0, 
    "reqd": 1, 
    "search_index": 1, 
    "set_only_once": 0, 
+   "translatable": 0,
    "unique": 0, 
    "width": "120px"
   }
  ], 
+ "has_web_view": 0,
  "hide_heading": 0, 
  "hide_toolbar": 0, 
  "idx": 1, 
  "image_view": 0, 
  "in_create": 0, 
- "in_dialog": 0, 
  "is_submittable": 0, 
  "issingle": 0, 
  "istable": 1, 
  "max_attachments": 0, 
- "modified": "2016-07-11 03:28:00.992064", 
+ "modified": "2018-03-08 14:22:38.019369",
  "modified_by": "Administrator", 
  "module": "Stock", 
  "name": "Item Customer Detail", 
@@ -88,5 +133,7 @@
  "quick_entry": 0, 
  "read_only": 0, 
  "read_only_onload": 0, 
+ "show_name_in_global_search": 0,
+ "track_changes": 0,
  "track_seen": 0
 }
\ No newline at end of file
diff --git a/erpnext/stock/get_item_details.py b/erpnext/stock/get_item_details.py
index 35d76a50e2..067acc79c4 100644
--- a/erpnext/stock/get_item_details.py
+++ b/erpnext/stock/get_item_details.py
@@ -396,8 +396,16 @@ def validate_conversion_rate(args, meta):
 
 def get_party_item_code(args, item_doc, out):
 	if args.transaction_type=="selling" and args.customer:
+		out.customer_item_code = None
 		customer_item_code = item_doc.get("customer_items", {"customer_name": args.customer})
-		out.customer_item_code = customer_item_code[0].ref_code if customer_item_code else None
+
+		if customer_item_code:
+			out.customer_item_code = customer_item_code[0].ref_code
+		else:
+			customer_group = frappe.db.get_value("Customer", args.customer, "customer_group")
+			customer_group_item_code = item_doc.get("customer_items", {"customer_group": customer_group})
+			if customer_group_item_code and not customer_group_item_code[0].customer_name:
+				out.customer_item_code = customer_group_item_code[0].ref_code
 
 	if args.transaction_type=="buying" and args.supplier:
 		item_supplier = item_doc.get("supplier_items", {"supplier": args.supplier})