I appreciate you getting back to us, @mikey007.
Currently, we can only eliminate recurring transactions one at a time. You can follow the steps provided by my colleague JaneD to delete the recurring transactions. Don't worry about eliminating them one by one since it doesn't affect any data in your books.
I know how much time you could save if the option to delete recurring transactions by batch will be added in QuickBooks Online. But I want to let you know that your voice matters and I'm submitting your feedback directly to our engineers.
For now, you can visit our blog site so you'll be able to get the latest updates about QuickBooks and what our Product Care Team is working on.
Also, when transferring data from Quicken, QuickBooks will accept all the data you imported. Thus, this won't upfront any warning message.
In case you need tips and related articles in the future, visit our QuickBooks Community help website for reference: QBO Self-help.
Please know that you can always get back to this post if you have any other questions. I'll be right here to help.
