 So let's go through the process. Let's make an invoice and then we'll receive the payment. We'll show you the whole process. So I'll make an invoice and then we're going to start here so that we can reverse this. And so we'll say this is AAA which is starting the same process. I'll go through this quickly because we've seen this before and I'm going to make it with inventory so we can make it the more complex type of transaction. If it was just a service item then you can just delete some of the complexity with inventory in your mind. And we're going to say inventory item. I'm going to say inventory one as the item name and quantity on hand. I'm going to put 10 on hand and we'll say that as at the beginning of this month.