my client side
frappe.ui.form.on('Sales Invoice', {
refresh(frm) {
frappe.call({
// type: 'POST',
method: 'erpnext.accounts.doctype.sales_invoice.sales_invoice.greeting',
callback: function(r) {
console.log(r);
}
});
}
})
server side
@erpnext.whitelist()
def greeting():
value = "hello world"
return value
I got this error