If I have entered time using Single Time Activity or Weekly Timesheet and then added the TSheets integration, how do I get both sets of time entries on an Invoice?

I'll guide to use time activities on your invoices, Jay.

There’s a setting to make your time activities billable. Once enabled, you can tag your customers on your time activities, so they can be added to their invoices.

1. Click the Gear icon and choose Accounts and Settings.
2. Go to Expenses and click the Make expenses and items billable.
3. Click Save and click Done.

Open your time activities, mark them as billable, and tag a customer.

On the other hand, the T-Sheets time data automatically syncs with QuickBooks. However, you’ll have to approve them first, so you can add them to invoices. You can find the detailed steps in the article about approving hours within QuickBooks Online. We also a have video tutorial for your additional reference. Just click the Watch how it works hyperlink.

Let me know if you need more help with invoicing using time entries.

Happy weekend!