From July 2019 Oracle are going to be updating their database to include the newest multitenancy architecture.
This will be happening over several maintenances through to November 2020. These updates will help to prepare the NetSuite Cloud for migration to the Oracle Cloud infrastructure, and will include both sandbox and production accounts on all datacenters. Once the update is complete there will be no noticeable changes to your account.
NetSuite have recommended users be prepared for offline downtime of 1-4 hours to perform this maintenance update. Each user will receive notifications with details about the timing of their upgrade closer to the applicable date. Please note that at this time, it is not possible to reschedule your database update.
Liberate I.T. are committed to keeping our customers well-informed through these changes. If you have any questions about this, please contact our support team at firstname.lastname@example.org