Let's get the correct gross sales show up on your report, @chris-l.

I've read your initial post and you've mentioned that there some "Not specified" sales entries on your Sales by Product/Service Detail report. A transaction falls under the Not Specified group when it's not set up into a particular filter you've chosen in the Group by drop-down menu.

You'll want to open each transaction or journal entry you've created. Then, make sure to choose the customer, class, etc. 

After that, please ensure to select the correct Report period and Accounting method when running the said report. This way, you'll see the sales information you want to see.

Also, the Sales widget or graph is a summary of your sales for a specific period (invoices and receipts). This won't include journal entries and hence won't affect the data on it.

By the way, you can customize your reports further to get personalized details. Then, you can memorize them to save copies for future use.

Stay in touch with me if you need more insights about handling your transactions or reports. I'm here to assist you anytime.