Inventory Org Expense Account

Hi all

I am creating a new inventory organization and need the Expense Account to be null within the inventory org setup (that's how it was setup for the other 112 orgs we have)

however EBS is suggesting that this is a mandatory field and wont allow me to save the org setup without entering a value.

in my last build, I had mistakenly entered a value, but this caused me issues down the line as the internal requisition charge account generation was failing as we use a combination of the value entered against the inventory item and the requester default charge account.