Good to know the issue is fixed.
Yes, unless you provide the account information your inventory organization will not show up in Payables.
None of these accounts will be used in Payables modules. You can put in any account here e.g. 01.3000.00 (retained earnings) or cash 01.1000.00 it does not really matter (and hence the word dummy organization). Once you reach Purchasing or Order Management section then you must put in the right account here. At that point you can fix the accounts as shown in my videos.