How to find duplicate invoice, sales receipt, or estimate/quote numbers

If you need to check for duplicate expense (checks, bill, etc.) numbers:

1. Choose Transactions > Expenses.
2. Click the No. column to sort it.
3. When the Expenses populate, it toggles the numbers in ascending and descending order.
4. Check for duplicates.

If you need to check for duplicate sales (invoice, sales receipt, etc.) numbers:

1. Choose Transactions > Sales.
2. Click the No. column to sort it.
3. When the Sales populate, it toggles the numbers in ascending and descending order.
4. Check for duplicates.

There's another way to run a traditional report in QuickBooks Online for this information:

1. Choose Reports > All Reports.
2. Click Manage Accounts Receivable.
3. Select Customer Balance Detail
4. Click the Customize button in the upper left corner under Print.
5. Set Transaction Date to All Dates.
6. Set Sort by to Num and select if you want Descending or Ascending order.
7. Click Run Report. 

You can do the same for expenses:

1. Choose Reports > All Reports.
2. Click Manage Accounts Payable.
3. Select Vendor/Supplier Balance Detail
4. Click the Customize button in the upper left corner under Print.
5. Set Transaction Date to All Dates.
6. Set Sort by to Num and select if you want Descending or Ascending order.
7. Click Run Report.

This will give a list of all invoices, sales receipts, checks, etc., listed in numerical order.

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