@Kris Wood SS 2.0 has CsvImportTask (task.TaskType.CSV_IMPORT) in the N/task module: https://netsuite.custhelp.com/app/answers/detail/a_id/43720 However, it has limitations, such as not being able to use multi-threading, nor can you assign the Queue to use. I assume it defaults to 1. You also still have the 25,000 line limit. You can try to create an in memory File object using file.create() and assign it to the csvTask.importFile parameter, and see if it works. I'd test it with a small sample first. I think you will still need to format the contents like a proper CSV file, with the correct headers for the saved import on the first line.