I am not the best with intercompany entries, but the accounting team is thinking an income account (expense) should have balanced once they ran a currency revaluation, it didn't. There a three entries that are related for the outstanding balance, two Bill entries hitting out Australian Subsidiary, and then a Advanced JE that at the header is pointed towards our Primary Subsidiary (USD), but the line item related that that expense account is for our Australian subsidiary (AUD). When adding in Amount Foreign Currency onto the income statement and looking at that expense account I can see the entries (2 bills and 1 JE) balance, but not when I am looking at the primary currency.

Revaluation or elimination? I would not expect income or expense accounts to be revalued, only eliminated.

That is what I was reading on Oracle's help page. I think they selected the wrong subsidiary on the line item in the Advanced Intercompany Journal they did for an entry.

Yeah, it is pretty fussy with good reason. One wrong date or exchange rate on the transaction can cause differences too.