I think the following will do exactly what you want
Condition: “Conf: F->T” checks for Confirmed flag changed
widget: “Set intPONum” sets the variable intPO (so that we don’t link a ttTable later). The expression is:
ttPOHeaderRow.PONum
Fill by Query: “Get Relevant Rels” populates variable tempPORel with the PORel records for this PO.
“Fill tempPO Qry”:
(All Display Fields selected)
Configured mapping:
Condition: “Check Releases”
TranGLC qry (tables and relationships):
TranGLC qry (table criteria)::