Business Object call variables not being set

Summary:

I am trying to retrieve the supplierid after my business object node creates a supplier and pass it on to next node.

However the supplier ID is blank and not getting passed to the subsequent node. I tried inserting the code node but looks like the syntax is not correct and even its not working.

1 .BO for creating Supplier Header and supplier id is the output.

2. i am using set variables node next

3.Using this variable in next business object

4 When i run the agent the first business object is returning supplier id but the set variable node is not getting updated with supplier id and is blank.