Automation policies are system-defined, or administrator-defined, sets of rules that govern the execution of automated actions. One of the default automation policies is Assign computers discovered in the last day to Organizational Group. It may not be possible to edit input parameters of the policy if "many" Organizational Units have been imported into Symantec_CMDB from Active Directory.
Try to edit input parameters of the policy under Policies -> Automation Policies -> Assign computers discovered in the last day to Organizational Group. The following error may pop up
Edit Job/Task Input Parameters dialogue is currently designed to load all Organizational Units imported from Active Directory into the drop-down list under Organizational Group -> Custom Value. If AD contains "many" items, it may cause a situation when an HTTP request will exceed the pre-configured default Web Server values.
ITMS 7.6.x / 8.0.x / 8.1 - 8.1 RU1.
It is being currently investigated by Symantec Engineering team.
It is possible to workaround the issue:
1. Edit "C:\Program Files\Altiris\Altiris NS Automation\Web\Web.config";
2. Increase maxAllowedContentLength value to 50000000 (Bytes);
3. Increase maxRequestLength value to 50000 (KiloBytes);