I put it on the following drill weekend. Just be sure to let your command know you completed the Oath as they may want to do some type of pinning ceremony. It took a few weeks for the systems to catch up but once it did I got a new ID made. I have not been to ODS yet but am on the waiting list for the July-August class.For prior Enlisted who got commissioned already.
When are you entitled to wear the O rank and use the title after the Oath of Office and Service Agreement are completed. I am not sure if I should wait until the system is updated, and I get a new updated CAC or until I completed ODS, which could take months, prior to start using the Officer Rank and new Title in communication. But technically you are discharged as an Enlisted and re entered in the Navy and sworn in as an officer, so I am confused now.
Thank you all and good luck to new applicants.