You can navigate to the + New button or upload a CSV file to manually add your missing transactions, gjadoun77. Let me guide you through the process.
The + New button in QuickBooks allows you to add various customer and vendor transactions quickly. To manually enter a missing transaction using this button, follow the steps below:
- Open your QuickBooks Online account.
- On your upper left corner, click the + New button.
- Choose the appropriate type of transaction you'd like to add.
- Complete the form by entering all necessary details.
- Once all the relevant information has been entered, click Save and close.
For reference, please see the screenshot below:

On the other hand, if the missing transaction you're referring to is bank entries, you can manually upload them using a CSV file. To do so, here's how:
- Choose a start date from your chart of accounts.
- Get transactions from your bank.
- Review and ensure the file you're using is in the correct format.
- Once everything is ready, start to manually upload your transactions.
You can check the screenshot below for reference:

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Additionally, you can refer to this article for guidance if you want help tracking all the activities made in your QuickBooks: Use the audit log in QuickBooks Online.
If you have other concerns or questions about adding transactions inside QuickBooks, feel free to click the Reply button. We'll be here to help you at any time.