Here is the document flow of original order, It shows referenced order and its delivery as well under its own flow and the corresponding VBFA entries are below.
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Now if teh update document flow is unchecked in the copy control then I only see 1000002033 in document flow of 1000002032, its subsequent deliveries are not linked to original order.
Is there any field or logic in vbfa that would help me to differentiate this? As far as I checked there's none.