-sub ar_transaction { &add_transaction(ar) }
-sub ap_transaction { &add_transaction(ap) }
-sub sales_invoice { &add_transaction(is) }
-sub vendor_invoice { &add_transaction(ir) }
+sub ar_transaction { &add_transaction('ar') }
+sub ap_transaction { &add_transaction('ap') }
+sub sales_invoice { &add_transaction('is') }
+sub vendor_invoice { &add_transaction('ir') }