Dear AlcaeusF,

Thank you for your reply!

The problem is the Bill is showing on our CGOS account (When I open the report via P&L or Chart of accounts) even if it contains Inventory items. The weird thing is, that we have only few  suppliers of our products and most of the Bills from them are OK (Booked correctly as Inventory Asset). Only some of them are directly on COGS account.

Ad.: We're not using COGS for direct booking of the expenses.

Also we moved from QB Desktop to QB Online, what can cause some problems:
1. This conversion could somehow cause this problem.

2. I'm not able to change any of the invoice before the date of conversion (07/08/2019).

Please, see the Screenshot enclosed, where you can see the details of the Bill (Items) and on the right side the transaction journal of the same Bill, and you can see, that it's booked to COGS instead of Inventory asset.

Thank you!

Monika