After upgrading Sage 15 to 16 - Inventory File Upgrade Error "Can't Start a support ticket on-line???"

Year end is always a pain but this year upgrading from 15 to 16 I have trouble upgrading files in Inventory.   The error is Field 'useunits' must have a value.  So somewhere in the Inventory database the default value for "useunits" has not established or there are errors in my data.

Where on-line can I start a support ticket to get some help with this come tomorrow morning?  I've only spent an hour looking...