diff --git a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js
index 6847a98..113dbe0 100644
--- a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js
+++ b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.js
@@ -134,6 +134,42 @@
 						}
 					})
 				}, __("Get items from"));
+				
+				// Get items from open Material Requests based on supplier
+				cur_frm.add_custom_button(__('Possible Supplier'), function() {
+					// Create a dialog window for the user to pick their supplier
+					var d = new frappe.ui.Dialog({
+						title: __('Select Possible Supplier'),
+						fields: [
+						{fieldname: 'supplier', fieldtype:'Link', options:'Supplier', label:'Supplier', reqd:1},
+						{fieldname: 'ok_button', fieldtype:'Button', label:'Get Items from Material Requests'},
+						]
+					});
+					
+					// On the user clicking the ok button
+					d.fields_dict.ok_button.input.onclick = function() {
+						var btn = d.fields_dict.ok_button.input;
+						var v = d.get_values();
+						if(v) {
+							$(btn).set_working();
+							
+							erpnext.utils.map_current_doc({
+								method: "erpnext.buying.doctype.request_for_quotation.request_for_quotation.get_item_from_material_requests_based_on_supplier",
+								source_name: v.supplier,
+								get_query_filters: {
+									material_request_type: "Purchase",
+									docstatus: 1,
+									status: ["!=", "Stopped"],
+									per_ordered: ["<", 99.99],
+									company: cur_frm.doc.company
+								}
+							});
+							$(btn).done_working();
+							d.hide();
+						}
+					}	
+					d.show();
+				}, __("Get items from"));
 		}
 	},
 
diff --git a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
index 3ff45f5..6300864 100644
--- a/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
+++ b/erpnext/buying/doctype/request_for_quotation/request_for_quotation.py
@@ -6,7 +6,7 @@
 import frappe, json
 from frappe import _
 from frappe.model.mapper import get_mapped_doc
-from frappe.utils import get_url, random_string, cint
+from frappe.utils import get_url, cint
 from frappe.utils.user import get_user_fullname
 from frappe.utils.print_format import download_pdf
 from frappe.desk.form.load import get_attachments
@@ -244,3 +244,49 @@
 		args = doc.get('suppliers')[cint(supplier_idx) - 1]
 		doc.update_supplier_part_no(args)
 		return doc
+		
+@frappe.whitelist()
+def get_item_from_material_requests_based_on_supplier(source_name, target_doc = None):
+	mr_items_list = frappe.db.sql("""
+		SELECT
+			mr.name, mr_item.item_code
+		FROM
+			`tabItem` as item, 
+			`tabItem Supplier` as item_supp, 
+			`tabMaterial Request Item` as mr_item, 
+			`tabMaterial Request`  as mr 
+		WHERE item_supp.supplier = %(supplier)s 
+			AND item.name = item_supp.parent 
+			AND mr_item.parent = mr.name 
+			AND mr_item.item_code = item.name 
+			AND mr.status != "Stopped" 
+			AND mr.material_request_type = "Purchase" 
+			AND mr.docstatus = 1 
+			AND mr.per_ordered < 99.99""", {"supplier": source_name}, as_dict=1)
+	
+	material_requests = {}
+	for d in mr_items_list:
+		material_requests.setdefault(d.name, []).append(d.item_code)
+
+	for mr, items in material_requests.items():
+		target_doc = get_mapped_doc("Material Request", mr, {
+			"Material Request": {
+				"doctype": "Request for Quotation",
+				"validation": {
+					"docstatus": ["=", 1],
+					"material_request_type": ["=", "Purchase"],
+				}
+			},
+			"Material Request Item": {
+				"doctype": "Request for Quotation Item",
+				"condition": lambda row: row.item_code in items,
+				"field_map": [
+					["name", "material_request_item"],
+					["parent", "material_request"],
+					["uom", "uom"]
+				]
+			}
+		}, target_doc)
+		
+	return target_doc
+		
\ No newline at end of file