Our vendor requires a separate check for each transaction. I made sure to make two separate bills. When it printed the checks Quickbooks merged and paid them together.

I'll help you in separating the merged checks that you've paid in QuickBooks Online, @forbes-mercy.

If you want to create a separate check for each bill, make sure that you pay them one at a time. For example, only check the box of the first bill in the Pay Bills window. You can refer to this screenshot below:

We can delete the checks that you've made and pay them one at a time to correct the issue. Here's how you can delete your paid checks:

1. Open the bill payment check that you've created.
2. Click More and select Delete.
3. Click Yes to confirm.

Once done, you can pay them one by one to create a separate check for each transaction.

In addition, you can run the Transaction List by Vendor report in QBO. This will show the transactions you've have for each vendor. Just go to Reports and search for Transaction List by Vendor.

Feel free to go back to this thread if you need further help. Just click the reply button below so I can provide you assistance.