It's my priority to resolve this issue for you, @arl686s. Let's narrow down to the root of the problem. 

In your case, this happens when there are no service items assigned for each customer manually. We can go to the Customer tab and create a custom field there.

Here's how:

1. Go to the Customers tab on the left-hand menu. 
2. Locate and click on the customer you want to customize. (click again if there is a project)
3. In the window, choose Custom Fields. 
4. Click the Add Field, then enter more details once the screen appears.
5. Next to "Service Items," select All Items. 
6. Lastly, Save.

Lastly, all you'll need to do is tap on the service item(s) you want to be listed when manually choosing. It's that easy!

That would be all to do the trick to locate the service items in QuickBooks Time. I'll be here for you if you need additional information. Keep safe.