I appreciate you for getting back to us, TerriSR.

You'll have to record the same customer as vendor. Since you're unable to enter the same name, you can put a special character or number to differentiate them.

Once added, you're good to create an expense transaction to record your customer's expense transaction.

I've added this reference as your guide: Enter and manage expenses.

I'll be around if there's anything that I can help with. Keep safe!