Hello @manager15,
You'll want to use the custom transaction number feature to change your number sequence. Let walk you through how.
- Go to Gear, Account and Settings.
- Select Sales, then Sales form content.
- Turn on the Custom transaction numbers box.
- Snap Save and then Done. I've added screenshots at the bottom.
After that, create an invoice and then change the Invoice no. field to your desired number. Please see this article for more information about changing the invoice number on sales forms. I've also added this link for additional reference: Customise invoices, estimates, and sales receipts in QuickBooks Online.
Fill me in if you have other questions or concerns. I'll be around to help. Thanks for dropping in and have a wonderful day.