Enter Customer Invoices

	A summarized invoice total may be entered to record sales or charges
	to a customer. If Order Entry is used, usually you would enter detailed
	invoices there, rather than use this screen. O/E posts the total amount 
	of the invoice automaticly to the customer when the invoice is closed (shipped).

	If no O/E is used then this screen is used for recording customer sales.

	However, sometimes it is necessary to use this screen for adjustments to 
	the customer.

	Enter a minus amount to record a credit adjustment. Use the AR menu option #2
	to record payments from a customer.