Get Customer PO from sales order header in addition to previous order(new jde order number) in Array iteration

Tools Release 9.2.6.3 New to Orchestrations I am pulling a list of flattened orders from a microsoft sql table and after iterating over SoEntry with customer PO in the header I would like to get back the original customer PO from suborchestration back in addition to previous order number(jde order number) so I can update the database table in an additional step. How is this best achieved?
I tried to get a custom request as first step of suborchestration before the form step but it is not...

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