What is the best practice to how a customer should control when the Tax is reported when using the core Customer Order Advance Invoice process ?
The scenario for the customer is that a CO Advance Invoice to 100% Advance in Tax is created in June, it is paid in July and the Order is delivered and invoiced in August. The IP4 transaction is the transaction that is required to report to Tax Office.
IP23 requires a tax account, so does PP38 and subsequently these are then subject to Tax Reporting whilst IP25 does not reach Tax Ledger Transactions even though posted to a Tax Account and PP40 does not become part of this as the flag Is Part of Tax Ledger is empty.

Is there a way to capture the actual VAT for goods delivered of the whole process i.e. only the IP4 (in this scenario) ?
Up to IFSApps9 these IP23/IP25/PP38/PP40 - as I recall it but have been wrong before - could be posted to Non Tax Accounts/Stat Accts.