Use this window to view self-billing invoice information sent by the customer. Self-billing invoice information includes deliveries for which the customer has invoiced himself. You can use this window to automatically or manually match this information to records in the system. This will form the base for the customer invoices created later.
For the description of each tab in the window, follow the appropriate link: Invoice, Delivery Notes, Lines.
Initiate 
Automatic Matching
Manually Match
Unmatch 
or Remove Lines 
Cancel Incoming Self-Billing Invoice