Comment 7 for bug 388145

Thanks for your help. I hope you are right. :-)

You may use the Dutch chart l10n_nl in addons-community to have the basic setup ready.
Alternatively I can send a database backup, with all basic setup done and translated accounts in English for your convenience.

Product purchase = 10 EUR, Tax = 19% =1,19 EUR
Product sale = 30 EUR, tax = 19% = 3,57 EUR
Stock location configured with account 3000

Purchase a product
In the general ledger nothing is booked, there is packing line generated in Stock management to receive the goods

Receive the products
account 3000 = D 10 ← Type balance – Stock account, defined in location
account 2800 = C 10 ← Type balance – Interim account, Goods received, awaiting invoice

Receive the purchase invoice
account 2800 = D 10
account 1612 = D 1,19 ← Type balance – Vat account to receive
account 1500 = C 11,19 ← Type balance – Creditor account

Sell product
In the general ledger nothing is booked, there is packing line generated in Stock management to send the goods

Deliver product
account 3000 = C 10 Stock account
account 2801 = D 10 Type balance – Interim account, Goods send, to invoice

Invoice customer
account 2801 = C 10
account 7000 = D 10 Type P/L – Cost of sales

account 8000 = C 30,00 Type P/L Sales account
account 1602 = C 3,57 Type balance – Vat account to pay
account 1300 = D 33,57 Type balance Debtor account

With this setup it doesn't matter if the goods are sent before invoicing or that the invoice is sent first and goods are delivered afterwards.