I’ve recently started working with NetSuite Analytics Warehouse (NSAW). I've completed the initial setup and successfully configured the data transfer. I can now see the datasets in NSAW. I'm currently trying to create a workbook using the Cash Sales dataset. While I can view all the standard fields, I’m unable to locate any custom field data in NSAW — even though I have already added the relevant custom and supplemental fields to the Sales subject area on the data transfer page. Could someone please guide me on where I can find the custom fields in NSAW or if there are additional steps required to make them available in the dataset?

Yeah you'll need to use the Custom Attributes Mapper https://docs.oracle.com/en/cloud/saas/netsuite-analytics-warehouse/nsawa/map-custom-attributes.html