Whats the difference between
- Purchase - "purchase receipts" & "supplier invoices"
- Sales - "customer invoices" & "Sales Receipts"
Technically, they are different OpenERP objects. Invoices are account.invoice and receipts are account.voucher.
The most important feature of sale receipts is to allow direct payment within the transaction instead of recording receivable and make the payment and reconciliation later in another step.
As receipts are made to record simple entries, many invoice features are not available like payment terms, product and quantity, sales person, ...etc.
I think receipt views are missing very important feature; foreign currency support. It is not possible to select receipt currency in the default view.
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