Today, March 13, Banner Finance upgrades will be moved into production. The entire process will probably take most of the day. If problems occur, the process might extend to the following day.
It is not necessary that you avoid accessing Banner Finance PROD during this time. However, although it is unlikely, you might experience problems if you are updating a document (creating a requisition or change order) at the same time that process is being upgraded. The worst case scenario is that you might lose the data you entered and have to re-enter the information.