I have a new client for 2020.  While reviewing their 2019 return, I noticed errors.  I need to file amended 2019 returns for them.  She used a tax program and e-filed the 2019.  It will not let me e-file the amended saying that i can only e-file if the original was e-filed successfully.  Where do I tell the program that it was e-filed successfully.  I can't find where to input that information.  Or is it even possible.  I hate to mail it - they are so behind with the processing of paper returns. 

Also, does it appears that Maryland is not accepting e-filing of amended returns.  Is this correct?

Thank you.