How do I view and manage a client invoice?

The list of client invoices is accessible in « Billing » category then « Client invoices » :

The list of customer invoices awaiting payment is displayed by default: 

Unlike cash invoices, client invoices can be searched by status:

- Pending: invoices awaiting payment

- Validated: invoices settled

- Provisional: provisional invoices (see section 8.9.3 Provisional invoices)

The list displayed shows amounts already paid, advance payments received and net payable.

Double-click to open a customer invoice. 

Customer invoice data is presented in the same way as cash invoices.

The only difference is the possibility of adding a payment to the selected invoice:

Then select the payment method:

A payment can be allocated to several invoices by selecting the invoice(s) to be paid: 

Then click on « Save » in the navigation bar to validate the payment.