Does PTO automatically send federal return to the state?

[olgaates]

Hello,

I'm preparing a corporate tax return (Form 1120) with CA and DE state returns. I wanted to know if PTO automatically sends a filed copy of the federal return to the states to which state returns are filed.

If not, how do you resolve this since states like CA and DE request a copy of the filed federal return?

Should I file the federal return first, attach the federal return PDF in "e-file attachment" and check relevant boxes so that the attachment will be filed with the states? And then file the state returns?

Thanks