Before running the autoconfig in production to propogate your changes, its usually a good idea to run autoconfig in test mode. This will reduce the risk and you can understand the impact better. AD tool provides a script to run autoconfig in test mode. This script will create a report which will list all files & profile options that is going to change when you run AutoConfig.

Below is the sample run for the same.

(appmgr02) bin – -bash $ adchkcfg.sh
Enter the full path to the Applications Context file:
/slot02/appmgr/PQDC2MS1appl/admin/PQDC2MS1.xml
Enter the APPS user password:
AutoConfig is running in test mode and building diffs…

AutoConfig will consider the custom templates if present.
Using APPL_TOP location     : /slot02/appmgr/PQDC2MS1appl
Classpath                   : /local/java/jdk1.4.2_04/jre/lib/rt.jar:/local/java/jdk1.4.2_04/lib/dt.jar:/local/java/jdk1.4.2_04/lib/tools.jar:/slot02/appmgr/PQDC2MS1comn/java/appsborg2.zip:/slot02/appmgr/PQDC2MS1comn/java

Using Context file          : /slot02/appmgr/PQDC2MS1appl/admin/PQDC2MS1/out/06190701/PQDC2MS1.xml

Context Value Management will now update the test Context file
Updating test Context file…COMPLETED

[ Test mode ]
No uploading of Context File and its templates to database.

Testing templates from all of the product tops…
Testing AD_TOP……..COMPLETED
Testing FND_TOP…….COMPLETED
Testing ICX_TOP…….COMPLETED
Testing IEO_TOP…….COMPLETED
Testing ABM_TOP…….COMPLETED
Testing EMS_TOP…….COMPLETED
Testing ECX_TOP…….COMPLETED
Testing BIS_TOP…….COMPLETED
Testing GL_TOP……..COMPLETED
Testing AMS_TOP…….COMPLETED
Testing CCT_TOP…….COMPLETED
Testing WSH_TOP…….COMPLETED
Testing CLN_TOP…….COMPLETED
Testing OKE_TOP…….COMPLETED
Testing OKL_TOP…….COMPLETED
Testing OKS_TOP…….COMPLETED
Testing CSF_TOP…….COMPLETED
Testing XNC_TOP…….COMPLETED
Testing IGS_TOP…….COMPLETED
Testing IBY_TOP…….COMPLETED
Testing PA_TOP……..COMPLETED
Testing JTF_TOP…….COMPLETED
Testing MWA_TOP…….COMPLETED
Testing CN_TOP……..COMPLETED
Testing CSI_TOP…….COMPLETED
Testing WIP_TOP…….COMPLETED
Testing CSE_TOP…….COMPLETED
Testing EAM_TOP…….COMPLETED
Testing IMT_TOP…….COMPLETED
Testing FTE_TOP…….COMPLETED
Testing ONT_TOP…….COMPLETED
Testing AR_TOP……..COMPLETED
Testing AHL_TOP…….COMPLETED
Testing OZF_TOP…….COMPLETED
Testing IES_TOP…….COMPLETED
Testing CSD_TOP…….COMPLETED
Testing IGC_TOP…….COMPLETED

Differences text report is located at: /SLOTS/slot02/appmgr/PQDC2MS1appl/admin/PQDC2MS1/out/06190702/cfgcheck.txt

Generating Profile Option differences report…COMPLETED
Generating File System differences report……COMPLETED
Differences html report is located at: /slot02/appmgr/PQDC2MS1appl/admin/PQDC2MS1/out/06190702/cfgcheck.html

Differences Zip report is located at: /slot02/appmgr/PQDC2MS1appl/admin/PQDC2MS1/out/06190702/ADXcfgcheck.zip

AutoConfig completed successfully.
The log file for this session is located at: /slot02/appmgr/PQDC2MS1appl/admin/PQDC2MS1/log/06190701/adconfig.log

Once autoconfig is run on test mode, it will generate a zip file (ADXcfgcheck.zip) as shown above. You can copy the zip file to $OA_HTML location and unzip the same. You can then view the report using following URL

http://hostname:port/OA_HTML/cfgcheck.html

Hope this helps !!