Currently there is a functionality called posting preview. This functionality sums up all posted documents, entries and related records and shows them to the user before the sales document is actually posted. This is fine but normally not sufficient for the end user. Ideally user should be able to see how the Invoice will look like after posting by using the actual posted invoice report.

This can currently be achieved by extending the posting preview and printing the report to the pdf. Would be really usefull to have this extension in standard BC.