Under expenses by supplier summary it says not specified. What does this mean?

Hello, @info366.

Good to see you here in the Community. I can help share some information about the Not Specified transactions in QuickBooks Online (QBO) for UK. 

Once you created a cheque or expense transaction without a payee/supplier, it will show as Not Specified in the Expense by Supplier Summary report. To correct it, you'll need to open each transaction and enter the payee/supplier. 

Here's how:

1. In the left tab menu, select Reports.
2. Enter Expenses by Supplier Summary in the search field.
3. Set the date and click on Run report.
4. Click on the dollar amount in the Not Specified section.
5. Then, open each transaction and enter a payee/supplier.
6. Once you're done, click on Save and close.

Also, once the payee/supplier on the transactions has been inactive, it will show as Not Specified, including the Journal Entry.

For additional reference, you can check this article to learn how to customise reports to fit your business needs: How to customise reports. 

You can always visit our Help Articles page to learn more "How do I" steps In QuickBooks Online for UK.

That should do it! Fill me in if you have additional questions about the Expense by Supplier Summary. I'd be happy to answer them for you.