How to create a contra-expense account?

I did mine via a Bank type account. Services I supplied to the vendor I deposited to this account. When the vendor invoiced me, I settled that account from that Netsuite 'bank' account. Maybe there are better ways.

really wanted to understand this in terms of what and when you count as revenue. so is it if you dont markup then it doesn't count as revenue? sounds like it doesn't matter if I paid in advance for my client to vendor? (For these billable expenses) I have a usecase I'm exploring for insurance brokers, the commission is counted as revenue but just not sure for the parts where it's on the bill but it's AP for another vendor (whom i'm brokering for?) so that AP part is also part of my AR (possibly?) so say $1100 of AR Invoices $100 dollars commission $1000 dollars of AP. Do I make $1100 AR + $1100Rev, $1000 AP + Expense, OR more like $1100 AR, 100Rev, but $1000 ap +expense then reversed on the customer invoice OR more like it was never expense more like $1100 AR, 100Rev, $1000AP net against AR? Is that AP part supposed to be count as my expense or just pure AP? I guess in NS terms what I mean is can I have a bill with AP Expense scenario which is billable and transfer to invoice?

My reply was given in the context of ‘contra’ where a supplier and I and both selling to each other. Rather than doing payments to each other we ‘contra’ net off what we owe to each other.