ITSM 7 Error: Column does not Exist

This error recently occurred at a customer site when they were inserting a new record into External Contact. This can occur when the ITSM meta-data for a table is out of synch with the table structure.  First ensure it is not a caching issue – Force clear cache definitions from Admin and restart IIS. If problem persists and it is reporting the column name then you can add the column manually to the table in SQL.