Similar to what's possible in Xero, and like we do for Bulk SO export.
Since they have to use the ERP (Pronto) that the main business uses, they want to be able to pivot & manipulate invoice data easily without having to keep a manual record of it or use Xero/MYOB/Quickbooks
Bulk Invoice Totals: Integrating with an accounting connector which we don't support
Bulk Charges: Internal analysis
Bulk Charges Export has now been released, see: https://cartoncloud.atlassian.net/wiki/spaces/KB2/blog/2023/10/30/207290395/Export+all+your+charges+with+the+new+Bulk+Charges+Report