I was prompted that I over contributed to my 401k. Now I am having trouble replicating the same prompt where it tells me the exact amount. How do I replicate it?

To see your excess contribution:

1. Log in to your account.
2. Select Federal Taxes from the left menu.
3. Click on Income and Expenses.
4. Select Edit next to Job (W-2)
5. Continue until you get to the screen Let's Check your retirement contributions.