Hello sureshotinc-bc,
I appreciate this brief explanation of what's going on in your QuickBooks Online books. Based on what you've mentioned here, it sounds like you're using timesheets to log hours and are wanting them to be billed to your customers, and I'm here to help ensure that's working properly.
When you're working with QuickBooks Online's Single time activity or Weekly timesheet features, it's possible to mark these entries as billable to your customers and assign the customer to whom it is billable. This can be done without turning on the Billable expenses feature in your account and settings. The important part of this process is first ensuring that the Billable field is checked off and that a customer has been chosen. Typically, the program won't allow you to save billable time without a customer selected, but it doesn't hurt to check to be sure both of these have been added to the time entry.
Once the time entry is marked as billable, a customer is chosen, and the entry has been saved, the program will populate a sidebar the next time you create an invoice for your customer where you can select the hours to apply to the transaction. After saving the invoice, the program will register the charge for the time to your customer. As you can see, adding the time entry to an invoice is a manual process and QuickBooks doesn't create the invoice for it automatically.
Check out these articles to see how these two time features, as well as billable expenses in general, work.
I hope this has been helpful. If not, please feel free to let me know what steps you're taking to enter your time and how you're expecting it to link to invoices or what's happening if the steps I've outlined are the ones you're taking but you're still not seeing the time being billed.
Take care!
