Quickbooks Desktop not filtering classes in reports

Thanks for sharing the details with us, jth21usa1.

I understand the need to pull up the classes assigned to invoices using the Profit & Loss report. With this, I have some information and troubleshooting steps to address this matter.

Each transaction consists of a header and a detail portion, except for journal entries. Classes are attached to the detail portion of the transactions, not the header accounts. Therefore, bank accounts, loan accounts, and all header types of accounts cannot be linked to a class on the reports. On an invoice, the accounts receivable (A/R) is considered the header, and the income account linked to the product or service is the detail.

Let's review the transaction to check if there are classes appointed. If you've confirmed and it's still missing on the report, your data might be damaged. We can fix this by verifying and rebuilding data. Just make sure to back up your data first before proceeding.

Verify Data: 

1. Press the File menu.
2. Choose Utilities from the drop-down option.
3. Select Verify Data.
4. Tap Ok to continue.

Rebuild Data:

1. Click the File tab at the top.
2. Select Utilities from the drop-down option.
3. Choose Rebuild Data.
4. Click Ok on Rebuild has completed.

To learn more about running reports, visit this link: Understand reports. It contains information to customize, memorize, and schedule reports in the program.

These resources will help you learn more about classes:

• Set up and use class tracking in QuickBooks Desktop 
• Filter, sort, or total reports by Class 

I'm always available if you need further help handling financial reports. You can also notify me of other QuickBooks concerns. Have a productive day ahead.

@jth21usa1 

Run the Verify/Rebuild Data utility. Did you encounter any issue?