The customers, vendors, and accounts map differently when switching from WiseSync.
To make mass changes to fields in QuickBooks Online to match the mapping needed for Mobius, we recommend an app called Transaction Pro.
Below is a video that shows you how you can make changes in your files. You can export vendors, customers or accounts, make changes and then re-import them in. So if you have two fields that are switched, they can be readjusted and then re-import it in.