If you do not have a finance system attached to Commerce you can use the CSV option to output information you need for the finance system.
When Vision Commence is configured to use the “CSV” Accounts Software (System Settings), in the Account Posting Maintenance - Pending Tab, you’re able to export the pending postings to a CSV file for manipulation and manual import into any 3rd party accounts software. You would typically only use this if Vision Commerce is not currently compatible with your accounts software, you can find the compatible systems in System Settings .
You are able to export all of the following posting types:
Billing Documents (Invoices / Credit Notes)
Accounts (Customers / Suppliers created or edited)
Journals (if you’re using stock movement posting for example)
Payments (for payments posted into VC via the API from your website / third party system, see: Web Integration & API)