Deductions & credits

If I may piggyback off this question, I have a follow-up.  First, thank you for the initial answer.  Very helpful.  I would have done it wrong. 

For context, I live in WI but my company is in NJ.  I do all my work remotely.  After I tell Turbo Tax to remove the WI taxes as duplicate, the next question in TT asks me if earned all my wages in NJ.  I can answer "Yes, I earned it all in NJ" or "No, I earned some in a different state."

What is considered the "earning" state?  WI or NJ?