Workflow expression and variables

I would like to find a method that could be used to reference a variable (using an expression that is in the ECN workflow) yet the variable was created during the ECR workflow.

The expression would look like the following:

If (mkt1)   {

                   If !  (marketing_nomore_1)       < this line is probably wrong since the variable exists outside of the                                                                                                                      workflow

                   Result = “A”;

                 }

    Else

Result = “skip”;

The above expression is in the ECN.

mkt1 is a Boolean variable in the ECN.

marketing_nomore_1 is a Boolean in the ECR.

Thank You.