How can I attach prepaid tuition documentation. My wv state taxes were rejected. I do not have anyplace to upload documentation.

Which document do you need to upload? Please reply to this thread for further assistance. 

Two pdf files showing proof of my contribution to both of my children's smart 529 plans for prepaid college tuition. 

You won't be able to add a PDF. Please see these help articles.

What are 529 plans?
Can I deduct contributions to a 529 plan?
Where do I enter a 1099-Q?

My wv state taxes were rejected due to not attaching proof of contributions.  How do I do this if I am unable to upload documents. 

You will have to submit this return by mail.  Tell TurboTax that you are going to mail it in and then when you print it the mailing instructions will be on the first page.  Sign the return, attach the necessary 529 documentation and mail it in.

@jessica_e_2000 

My Nephew did his taxes on TaxAct back in January and they already had the update to attach his  Smart 529 forms. Is there a reason TurboTax doesn't have this option. by the way my friend used Turbo Tax Premier

Following this too.  I paid $39 to file my WV taxes and I still have to print it?  Seems ridiculous.