feat: details fetched from supplier group in supplier
diff --git a/erpnext/buying/doctype/supplier/supplier.js b/erpnext/buying/doctype/supplier/supplier.js
index 4ddc458..af6401b 100644
--- a/erpnext/buying/doctype/supplier/supplier.js
+++ b/erpnext/buying/doctype/supplier/supplier.js
@@ -60,10 +60,23 @@
 				erpnext.utils.make_pricing_rule(frm.doc.doctype, frm.doc.name);
 			}, __('Create'));
 
+			frm.add_custom_button(__('Get Supplier Group Details'), function () {
+				frm.trigger("get_supplier_group_details");
+			}, __('Actions'));
+
 			// indicators
 			erpnext.utils.set_party_dashboard_indicators(frm);
 		}
 	},
+	get_supplier_group_details: function(frm) {
+		frappe.call({
+			method: "get_supplier_group_details",
+			doc: frm.doc,
+			callback: function(r){
+				frm.refresh()
+			}
+		});
+	},
 
 	is_internal_supplier: function(frm) {
 		if (frm.doc.is_internal_supplier == 1) {
diff --git a/erpnext/buying/doctype/supplier/supplier.py b/erpnext/buying/doctype/supplier/supplier.py
index edeb135..791f71e 100644
--- a/erpnext/buying/doctype/supplier/supplier.py
+++ b/erpnext/buying/doctype/supplier/supplier.py
@@ -51,6 +51,23 @@
 		validate_party_accounts(self)
 		self.validate_internal_supplier()
 
+	@frappe.whitelist()
+	def get_supplier_group_details(self):
+		doc = frappe.get_doc('Supplier Group', self.supplier_group)
+		self.payment_terms = ""
+		self.accounts = []
+
+		if not self.accounts and doc.accounts:
+			for account in doc.accounts:
+				child = self.append('accounts')
+				child.company = account.company
+				child.account = account.account
+			self.save()
+
+		if not self.payment_terms and doc.payment_terms:
+			self.payment_terms = doc.payment_terms
+
+
 	def validate_internal_supplier(self):
 		internal_supplier = frappe.db.get_value("Supplier",
 			{"is_internal_supplier": 1, "represents_company": self.represents_company, "name": ("!=", self.name)}, "name")
@@ -86,4 +103,4 @@
 						create_contact(supplier, 'Supplier',
 							doc.name, args.get('supplier_email_' + str(i)))
 				except frappe.NameError:
-					pass
\ No newline at end of file
+					pass