Making a journal entry template inactive

I can share some information about recurring transactions, @Tom208.

If you pause a recurring transaction, such as a journal entry template, to make it inactive, all the transactions created before the pause will remain. Even deleting the template won't affect past transactions.

You can refer to the following article for more information about managing your recurring transactions: Review your recurring transactions in QuickBooks Online. 

Additionally, if you want to reverse a journal entry to update or correct it, you can check out this helpful guide: Reverse or delete a journal entry in QuickBooks Online. 

Let me know if you have any further questions about journal entries. I'm always here to help you out. Have a great day!