With QB Time/ Work Force App ..How do you add multiple projects at one time for a single customer ?

Thanks for posting your inquiry about project management in QuickBooks Time, Andrew608. Allow me to join you here and share details about this. 

For now, you can only assign one project per customer in QuickBooks Time. 

I suggest sending feedback to request supporting multiple projects per customer. The product team reviews customer suggestions when planning updates, so your feedback can help influence future development.

Here's how:

1. Click the Question mark icon in the upper-right-hand corner of QuickBooks Time.
2. Select Suggest Idea.
3. Type in your feedback or product suggestion, then click Send Idea.

Feel free to check out these articles as well for additional guidance when using the Projects feature:

• Run A Job Costing By Team Member Report In QuickBooks Time
• Use QuickBooks Time Project Posts And Activity Feed

Thank you again for engaging with us here and bringing this issue to our attention - user insights like yours are invaluable for improving our products.

Let me know if you need anything else, Andrew608. I'd be glad to answer any other questions you have about time tracking in QuickBooks.