Hi @CK18,
I'm here to share insight on your query about sales transaction that wasn't recorded on the exact date.
You'll have to record the sale transaction by hand in QuickBooks Online (QBO). The date should be changed as to when the order was made. As well as the deposit, or the payment for the sale transaction. This way, you won't have issues with your bank reconciliation.
Once that's done, You can refer to this article for the reconciliation process: Reconcile an account in QuickBooks Online. It's a detailed step by step guide of how you can reconcile in QBO.
In case you encounter any issues during this process, see this article for troubleshooting steps: Fix issues when you're reconciling accounts in QuickBooks Online.
Place additional questions in the comments below. I'll be sure to get back to you.
