Project Automation - Simple field population

[Scott Doyle]

Not sure if this is the right place, apologies if not and or if the question is a repeat (but google/documentation was not giving me clarity)

I am creating a simple task.  On issue creation, create issues X Y Z.

This part is working correct, however I am also trying to populate data from fields in the first issue to fields in X Y Z.

Under more options in issue creation I am using this :

{
    "fields": {
        "Summary": "Please create SQL query for {{issue.key}}.", "duedate": "{{issue.customfield_12000.duedate.minusDays.(7)}}"
         }
}

The bolded secion is working great, the other field is doing nothing nor is it erroring out.  I am sure this is something silly. Help!

[Scott Doyle]

I solved this, I wasnt using smart fields correctly :)