Deposit deleted by mistake

I have outlined some steps that will surely help you, cmetz231601.

You must manually recreate the deleted reconciled deposit in QuickBooks Online (QBO). Since you have the details of that deleted transaction, let's create a deposit. Here's how:
 

1. Log in to your QBO account.
2. Click the + New icon from the left menu to create a new transaction.
3. Choose Bank Deposit.
4. In the Add other funds to this deposit section, enter the details of the deleted transaction, including the amount, date, and account.
5. Tap Save and Close to save the deposit.

Once you've completed recreating the deleted reconciled deposit, go to your account register to reconcile the transaction manually. Let me guide you on how:
 

1. Click the Gear icon and choose Chart of Accounts.
2. Look for the account where the transaction is allocated. Then, select View Register. 
3. Select the transaction to expand the view.
4. Under the check column, continuously click the box until you see R (reconciled).
5. Then, click Save.

For your guide, feel free to check this article regarding how to undo or remove transactions from reconciliations in QuickBooks Online. The article provides step-by-step instructions for undoing or removing transactions from reconciliations. Following the instructions carefully, you can successfully remove or undo the transactions and ensure your QuickBooks Online account is up-to-date.

Additionally, you can also generate a handy copy of your reconciliations to use as a reference tool in the future. You can also print it or export it to your desktop folder. How do I view, print, or export a reconciliation report?

Please let me know if you have any further questions or if there is anything else I can assist you with to reconcile your account. I'll be here to help you. Have a great day!