It may happen that an accounting entry on the stock journal has a credit=debit=0.
This is probably due to the fact that the cost of the article is set to zero; which comes from the original purchase order where the cost is not set (because we don't know it)
The difficulty to correct the entry (once you know the cost because you received the supplier invoice) is to have the quantity and possibly the PO cost available on the accounting entry form. (otherwise it is quite impossible when you have a lot of such zero debits and credits)
How to add the quantity and cost on the form? (using the standard developper tools available for V8 Saas user)?