Received an email saying my state tax return is incomplete. I logged back on to turbo tax but it just says complete. ?? I mailed in both federal and state tax return.

If you received an Email from your state indicating that something is incomplete.  They will generally include a statement of what is missing.  

You indicated that you mailed your returns.  On common problem is that you may not have signed the return.  The IRS and the States will not process an unsigned return.

If you wish you can contact your state DOR.  Here is a list of Dept. of Rev by state  List of state DOR's

I received the email for TurboTax and NOT the state. I am sure that I signed the forms and included all necessary pages. And, the current state tax homepage does not allow me to sign in to check on the status. Don't know what is going on. Wish Turbo Tax will clarify why they sent me an email saying it is missing information, while my turbo tax page shows everything completed. 

If you are having issues and need assistance, please contact customer support. Please see the Customer Support phone number here. If you would like to reach out through our website, please see the TurboTax FAQ below for contact information: https://support.turbotax.intuit.com/contact/