Saving, Checking and Activating Profiles 
Use
Once you have finished
maintaining a profile, you can check it for errors or inconsistencies, save it in the database and then activate it.The CCMS profile maintenance tool archives profiles as operating system files and also stores a reference copy in the database. The database copy is used to create the profiles at database level. This process is called activating a profile.

The profile maintenance tool ensures that changes to profiles are activated when the corresponding SAP instance is restarted. You cannot make changes to an SAP instance during active operation.
Procedures
Saving profiles
Checking single profiles:
Enter the name and version of the profile on the initial screen of Transaction RZ10. Then choose Profile
® Check.Checking all profiles for the active server:
On the initial screen of Transaction RZ10, choose Utilities
® Check all profiles ® on the active server.Checking all profiles used in operation modes:
On the initial screen of Transaction RZ10, choose Utilities
® Check all profiles ® in operation modes.Activating profiles:

The system creates automatically creates a backup file with the extension .bak for active profiles that already exist in an SAP System. You can copy and display this backup file even if the SAP System is not available.
See also:
Checking Active Parameters Creating and Copying Individual Profiles