A user incorrectly associated the billable hours in the Time Entries with the wrong class that flowed through the created Invoices. There are hundreds of lines to update. Is there an 'easy' fix on this? I tried to do a CSV import of invoice but it requires me to map each billable hour line in the CSV mapping which means hundred of lines to map. It even requires the internal ID of the Time Entry as line ID which I haven't figured out as well through saved search. I am extracting the invoice lines through saved search and I haven't found the field for the internal ID of the Time Entry related to the billable hour. Or am I doing something wrong and making it too complicated?