Passing Input to a Integration Procedure, the syntax is different for passing Input of type primitive (String int etc..) and passing List/Obj as Input to IP from a FlexCard.
Passing a Primitive type the syntax is straight forward. {node} node being the variable that you want to pass as Input to IP.
Passing a List/Obj the syntax is like {records[0].node} node being the list/obj that you want to pass as Input to IP.
Data Source of the FlexCard is
{"userdetails": [{"name": "user1", "age": 25},{"name": "user2", "age": 20}],"testInput": "test"}
The “testInput” field is of type String.
And “userdetails” is a list.
So passing the data to Integration procedure this is the syntax. 
