To avoid dataloss, unexpected results, some actions have to be performed as preparation already before starting the upgrade.
Before the Upgrade:
- First repair any inconsistent data still in the old release: Use report SU24_AUTO_REPAIR with all available options (documentation can be found in SAP note 1539556).
- Initialize timestamps with report SU25_INITIALIZE_TSTMP (SAP note 1599128)
- Create a backup transport of SU24 data after each step (you can use SU25, step 3 for that creation of the transport) and export it
- Create a backup transport of your roles and export it
Now after the Upgrade:
Apply all notes listed in note 440231. This note is kept actual with the latest notes.
Run SU25 2a-2c, alternatively you can use also the expert mode combining 2a and 2b by starting SU24->button 'Default Values Comparison'. As of 7.40 this expert mode is included in the SU25 action-list after step 2b.
If everything is fine, create a final transport in step 3 of SU25 and transport the new proposals through your system landscape.
Then transport your already adapted roles as well.
Update June 19th, 2013:
If you have missed the first step of 'Before the Upgrade' (SU24_AUTO_REPAIR ->Repair Modification flags), note #1850378 provides a correction which corrects at least the SU24-entries with incorrect modification flags. Missing modification flags cannot be repaired anymore at this moment, as the old SU22-content before Upgrade is required to repair the missing ones.