If a vendor sends extra pieces and tells us to keep how do we show on PO so invoice matches. So 95 of an item at $1 and 5 not charged $0, but want to show in inventory.

I've got your back, dan-s.

Allow me to help you enter the transaction you want in QuickBooks Online.

We're unable to enter those items that were charged as $0 cost. Thus, you'll have to accept the exact amount for the items that were sent. To offset the $5, you can enter it as a vendor credit.

Here's how: 

1. Go to + New and select Vendor credit.
2. In the Vendor dropdown, choose your vendor.
3. Depending on how you record purchases with this vendor, enter the Category details or Item details. Usually, this is the category, product, or service you’re getting credit for. Then, you can use the discount item for it.
4. Once done, click Save and close.

Moreover, this article can give you more insights about handling credits from vendors in QBO: Enter vendor credits and refunds in QuickBooks Online. This includes other scenarios for recording a vendor credit.

On the other hand, here's an article that can give you more insights in case you need to review all your vendor transactions in QBO: View vendor transactions.

If you need more help accomplishing your other tasks, please let me know by commenting below. I'll always have your back. Take care always.