I've got you covered, dupolis. Let me elaborate on changing the location of your invoices by batch.
Batch modification of transactions is exclusive to QuickBooks Online (QBO) Accountant and Advanced versions using the reclassify feature. If you're not on these subscriptions, you can invite a QBO accountant user to your company and change the locations on those invoices. Here's how you can invite an accountant:
Sign in to QBO as a primary admin.
SelectSettings, then hitManage users.
Click theAccountantsorAccounting firmstab.
Enter your accountant’s email address, then tapInvite.