I'm reviewing a clients books and when i clicked on an invoice they've uploaded from Dext the original submitter is showing as me rather than the client. Why?

Thanks for reaching out to the Community, @rachel-wright 

The audit log for automated transactions will usually show either the Primary admin of the account or the user who connected the app to QuickBooks in the audit log. 

As Dext is a third-party app, we're unable to offer specific guidance, but welcome other users with experience to comment below.