ACF2 - How to change UID for existing OMVS segments ? What rebuild commands are required?

Products

• CA ACF2
• CA ACF2 - DB2 Option
• CA ACF2 - z/OS
• CA ACF2 - MISC

Issue/Introduction

How to change the UID for existing users in batch? What rebuild commands(modify ACF2, 'F ACF2,REBUILD...) are required to make the OMVS UID and GID changes take effect? 

Environment

Release : 16.0

Component : CA ACF2 for z/OS

Resolution

When going to change the OMVS user profile use the CHANGE command. Make sure to rebuild the user profile OMVS records as well. For the system that the User or Group Profile record is INSERTed the F ACF2,REBUILD(USR),CLASS(P) and F ACF2,OMVS rebuilds would not need to be done, however for any lpars that share the ACF2 databases the rebuilds would need to be done. The command to rebuild is:

F ACF2,REBUILD(USR),CLASS(P),DIVISION(OMVS)
F ACF2,REBUILD(GRP),CLASS(P),DIVISION(OMVS)

Once the rebuild is completed, it activates the changes to the profile. However, this will only affect users after they logon.