MVP3’s import facility is dead easy to operate. You just drag and drop your sales and supps file on to the browser, and click a process button. MVP3 is capable of processing supps and sales in one pass. Yes, you have the opportunity of choosing whether or not to import out of contract or unconfirmed sales.
Sometimes it can take a while to import a lot of files, so MVP3 will send you an email when the import process is complete.
Your import history is retained forever, and where appropriate, the log of changes is also retained.
Exporting is a matter of choosing your export type, your district (where necessary), and clicking the “Export” button. MVP3 goes away and generates the your file in the background. You can see the status of the export process as it advances from queued to processing to validating to ready.