How do I know if my amended 2020 Return was e-filed from the TT Desktop App or if I need to mail it?

Hello, I amended my 2020 return but was immediately rejected. After the rejection, I was inquired to install the desktop program and amend it from there. I completed all of the steps, and I was allowed to exit the program. However, information has not been updated on my TT account nor have I received an email that it was e-filed. Is there a way I could check if it was e-filed and accepted or do I have to print and send out all the forms by mail?