A transaction already reconciled wants me to add it again

Welcome to the Community, usercelticacres1!

To ensure the best resolution, I have to gather some information about your concern. It would be helpful if you could provide more details about your specific process.

May I know where you were prompted to reenter a reconciled transaction in QuickBooks Online (QBO)? You can attach screenshots in your reply.

I appreciate any additional information you can provide. Thank you in advance.