I saw online you can update the location using f12 command with the following: nlapiSubmitField (‘location’, ‘your internal id’, ‘externalid’, ‘your new external id' Does anyone know how to do the same for a taxcode? taxitem - not sure if I can update external ID using csv for this hence thinking of alternative ways to do it?

SuiteScript Supported Records is where you want to start to see if a record supports suitescript