It depends on how big is the migration task like whether we only need to migrate contacts and its activities OR with contacts migrate all associated data like address, contributions, events, notes etc. In my opinion if the migration job is small and we only need to import a single entity, then I would prefer to use the PHP script
techinique:
- PHP script which would be like:
class MigrationScript {
public function process($batchTotal, $batchsize) {
$offset = 0;