feat: details fetched from customer group in customer

erpnext/selling/doctype/customer/customer.js

@@ -130,6 +130,10 @@ frappe.ui.form.on("Customer", {
 				erpnext.utils.make_pricing_rule(frm.doc.doctype, frm.doc.name);
 			}, __('Create'));
 
+			frm.add_custom_button(__('Get Customer Group Details'), function () {
+				frm.trigger("get_customer_group_details");
+			}, __('Actions'));
+
 			// indicator
 			erpnext.utils.set_party_dashboard_indicators(frm);
 
@@ -145,4 +149,15 @@ frappe.ui.form.on("Customer", {
 		if(frm.doc.lead_name) frappe.model.clear_doc("Lead", frm.doc.lead_name);
 
 	},
-});
+	get_customer_group_details: function(frm) {
+		frappe.call({
+			method: "get_customer_group_details",
+			doc: frm.doc,
+			callback: function(r){
+				frm.refresh()
+			}
+		});
+
+	}
+});
+

erpnext/selling/doctype/customer/customer.py

@@ -78,6 +78,32 @@ class Customer(TransactionBase):
 			if sum(member.allocated_percentage or 0 for member in self.sales_team) != 100:
 				frappe.throw(_("Total contribution percentage should be equal to 100"))
 
+	@frappe.whitelist()
+	def get_customer_group_details(self):
+		doc = frappe.get_doc('Customer Group', self.customer_group)
+		self.accounts = self.credit_limits = []
+		self.payment_terms = self.default_price_list = ""
+
+		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.credit_limits and doc.credit_limits:
+			for credit in doc.credit_limits:
+				child = self.append('credit_limits')
+				child.company = credit.company
+				child.credit_limit = credit.credit_limit
+			self.save()
+
+		if not self.payment_terms and doc.payment_terms:
+			self.payment_terms = doc.payment_terms
+
+		if not self.default_price_list and doc.default_price_list:
+			self.default_price_list = doc.default_price_list
+
 	def check_customer_group_change(self):
 		frappe.flags.customer_group_changed = False