Realm (Account Id): Netsuite realm e.g. 2344535, as for `production` or 2344535_SB1, as for the `sandbox`.
Consumer Key: Consumer key associated with your integration.
Consumer Secret: Consumer secret associated with your integration.
Token Key (Token Id): Access token key.
Token Secret: Access token secret.
Record Types: internal IDs of Netsuite record types you want to sync. You can enter a single ID or multiple ones by separating them with commas. You can find IDs in Netsuite Records Browser.