# 3.9 Invoices Invoices are again organized with filters and information cards. Within the main information an Invoice must be correlated with a Company/Contact and also a Sales Order (so that the information flow is complete). The relations menu gives access and enables addition of correlated data regarding the modules that appear in the list. [![image-1655736974819.png](https://usermanual.vtenext.com/uploads/images/gallery/2022-06/scaled-1680-/image-1655736974819.png)](https://usermanual.vtenext.com/uploads/images/gallery/2022-06/image-1655736974819.png) *Invoice details* [![image-1655737023315.png](https://usermanual.vtenext.com/uploads/images/gallery/2022-06/scaled-1680-/image-1655737023315.png)](https://usermanual.vtenext.com/uploads/images/gallery/2022-06/image-1655737023315.png) *Products in an Invoice* [![image-1655737080418.png](https://usermanual.vtenext.com/uploads/images/gallery/2022-06/scaled-1680-/image-1655737080418.png)](https://usermanual.vtenext.com/uploads/images/gallery/2022-06/image-1655737080418.png) *Invoice Total, Discounts, Shipping & Handling Charges, Rounding off*
**Organizational layout of related modules**
ConversationsNotesPDF Maker
Activities (Calendar)Tasks (Calendar)Documents
DDTInstallationsMessages
Processes