EBS R12 Auto Accounting for Memo Lines

Hoping to record the revenue side of the A/R entry from a memo line invoice to a suspense account and my implementer is telling me that the accounts assignment for the revenue distribution MUST be a GL segment that is mapped to the revenue category. We are just passing through Expense to a related party and no part of this transaction is revenue from a P&L perspective. The Revenue credit serves only to clear a debit in suspense which was create by S2P. I am struggling to understand this apparent lack of flexibility. Auto Accounting appears on the limited reading