Siebel Developer's Reference > User Properties > List Column User Properties >

Forcing Fields That a List Column References to be Active

The ForceActive list column user property forces the field that the list column references to be active even if Siebel CRM does not display it. A field is typically active only if Siebel CRM displays it in the client. The value for this user property must include a Boolean value. If Y, then the field is active even if Siebel CRM does not display it in the client. For more information, see Forcing Controls to Be Active.