I accidentally made a transaction recurring. How can I remove the unwanted transactions?

Hi there, @lomtreasurer.

You can delete your recurring transactions by clicking the Edit dropdown under the Action column. 

Check the steps below:

1. Go to the Gear icon ⚙️ and choose Recurring Transactions
2. Click the Edit dropdown under the Actions column of the template that you're trying to delete. 
3. Select Delete and then Yes to confirm the deletion.

See this article for more information about your list of recurring transactions: Review your recurring transactions in QuickBooks Online.

Here are some video tutorials that can help you with your QuickBooks Online: Video tutorials for QuickBooks Online. 

Also, I've attached an article you can use to learn how to recover details of a deleted transactions through the Audit Log: Void or delete transactions in QuickBooks Online.

Don't hesitate to comment below if you need further help about deleting those recurring transactions and or anything else by leaving a reply below. Take care.