After a Microsoft Dynamics CRM Online organization is upgraded to the December 2012 Service Update, but has not applied the latest Product Update, users may notice a script error that will occur during lead qualification. As a result of the script error, the lead is not qualified.
The same issue can also occur in Microsoft Dynamics CRM 2011 On Premise deployments with Update Rollup 12 applied.
The same issue can also occur in Microsoft Dynamics CRM 2011 On Premise deployments with Update Rollup 12 applied.