Why is my state refund at a 0 balance

MY STATE REFUND WAS LESS THAN I EXPECTED

The state will send you a letter explaining the change.  TurboTax does not get any feedback from your state after your return is accepted, so no one at TT knows why your state refund was less.   Did you owe back taxes, child support, or student loans?  Traffic fines, etc.?

https://ttlc.intuit.com/community/state-taxes/help/how-do-i-contact-my-state-department-of-revenue/00/25573

Have you already filed your return? If so, you can verify your state refund amount by checking your electronic or printed copy of your tax return. If you let us know what state you filed, we can assist you with the specific location on your return to locate your state refund amount.

Where does it show 0?  Did you happen to click on Amend to get back into your return?  Did you file it yet?   Was it Accepted?

If you used the Online version you can check your efile status here     

https://turbotax.intuit.com/tax-tools/efile-status-lookup/   

When you efile you get back 2 emails.  The first email only confirms the transmission.  The second email says if the IRS (or state) Accepted or Rejected your efile.  And check your spam folder for them.

When you log into your account you should also see the status and if it was Accepted or Rejected, Started, Printed, Ready to Mail, etc.  What does it say?