Invoke WorkFlow-error sending collection

I have collection List object need to send to another work flow.
But Throwing error
refer attached imagecollectionObj collection

Here CollectionOfState is also a variable of type List

How to assign list to a list?
for example

anyone pls help

Hi @ KarthikBallary,

And what is the error in the other workflow did you import your arguments ?

yes, It is showing collection not intialised

Ok but can you be especific or show a print of your erros and imported variables in wrokflow ?