fix: Error on any new doc from Shipping Rule. (#21206)

diff --git a/erpnext/accounts/doctype/shipping_rule/shipping_rule.py b/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
index 1fd340c..b2638c7 100644
--- a/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
+++ b/erpnext/accounts/doctype/shipping_rule/shipping_rule.py
@@ -82,7 +82,7 @@
 			if not shipping_country:
 				frappe.throw(_('Shipping Address does not have country, which is required for this Shipping Rule'))
 			if shipping_country not in [d.country for d in self.countries]:
-				frappe.throw(_('Shipping rule not applicable for country {0}').format(shipping_country))
+				frappe.throw(_('Shipping rule not applicable for country {0} in Shipping Address').format(shipping_country))
 
 	def add_shipping_rule_to_tax_table(self, doc, shipping_amount):
 		shipping_charge = {
diff --git a/erpnext/public/js/controllers/transaction.js b/erpnext/public/js/controllers/transaction.js
index 2c436b2..0c63c33 100644
--- a/erpnext/public/js/controllers/transaction.js
+++ b/erpnext/public/js/controllers/transaction.js
@@ -894,7 +894,7 @@
 
 	shipping_rule: function() {
 		var me = this;
-		if(this.frm.doc.shipping_rule) {
+		if(this.frm.doc.shipping_rule && this.frm.doc.shipping_address) {
 			return this.frm.call({
 				doc: this.frm.doc,
 				method: "apply_shipping_rule",