I finished my reconciliation on Ch acc $0.0 ,then somehow i deleted 1 of the transactions now my finished reconciliation is out of balance, how do i rectify ???

Hello there, ashgsmith. 

You can re-create the transaction you've deleted to rectify your reconciliation. Let's go to the Audit Log to verify its details.

Here's how:

1. Go to the Gear icon.
2. Select Audit Log under Tools.
3. Choose the Filter drop-down.
4. Under the Events section, click the box beside Transactions.
5. In the Show field, select Deleted/Voided Transactions.
6. Click Apply.

Kindly refer to the screenshots below for your reference.

From there, locate the transaction, then select the View link under the History column to open. Gather all needed information and re-enter it by selecting the +New button.

Once done, reconcile your Ch account again to make sure everything is accurate and balance with your bank statement.

In case you encounter issues when reconciling, you can check out this article: Fix issues when you're reconciling accounts in QuickBooks Online. It contains steps on how to locate the cause of the problem so you can finish reconciling.

Please let me know if you have other concerns. I'm just around to help.