Can I delete all transactions for the year and import everything again? It seems I had issues with connections and many transactions are duplicates

If you are not using QBO Simple Start and your account < 60 days old, you are able to purge your account. Otherwise, you should open a new blank QBO account and cancel the old one.

https:// quickbooks.grsm.io/US

https:// quickbooks.grsm.io/us-promo