QB has jumped one invoice number. How do I go back one

Hi there, Nick! I'm happy to share some helpful information with you about opening past invoices in QuickBooks Online (QBO).

To begin with, we can use the Custom transaction numbers feature to set your own numbering preferences. This adds an Invoice no. field where you can enter any number or letter format you want. Also, you can manually add and enter the skipped invoice number.

Once you've configured your custom invoice numbering, QuickBooks will adhere to the sequence you've set. To avoid inadvertent changes, you can adjust this setting as follows:

1. Go to Settings, then choose Account and settings.
2. Select Sales under the Company column.
3. In the Sales form content, click Edit ✎.
4. Turn Custom transaction numbers on.
5. Select Save, then hit Done.

For more comprehensive guidance on this process, you may refer to the article: Add custom transaction numbers to sales forms in QuickBooks Online.

Furthermore, it's important to check the audit log to identify any specific changes made by a user. To learn about using the audit log in QBO, you can refer to the following resource:: Use the audit log in QuickBooks Online.

Additionally, you may refer to this article for additional insights and information on how to receive and record invoice payments in QBO: Record invoice payments in QuickBooks Online.

If you have any further questions or encounter challenges with other invoice-related concerns in QuickBooks Online, please feel free to reach out. I'm here to help. Have a productive day!