Attaching state return to another state return

[DGL]

How do you attach a state return to another state return?  (a credit is being taken for taxes paid to another state

[Accountant-Man]

Print it to PDF and then attach it before e-filing.

[Terry53029]

When you have the state open that you need to attach another state as a PDF, go to e-file, scroll down to attach PDF, and follow instructions.

[BobKamman]

Some want a staple, others just a paper clip. 

[JJ27]

ProSeries do not automatically attach other state if it is a requirement?

How do I know what is attached automatically and is sent to the state and what is not?