Create a sales order using SalesOrderImport FBDI for Subscription Items

Summary:

We are planning on creating Sales Orders using the FBDI process for the below scenario:

1. We have a perpetual or a term license item on Line 1
2. Line 2 is actually a Support and Subscription Item which is associated with the line 1.

On the UI, we are able to associate the lines and map them correctly against each line. However on the FBDI when we try to use the below tabs for creating relationships, we are unable to import the orders.

1. DOO_ORDER_LINES_ALL_INT - Parent Line Reference and the Root Line Reference
2. DOO_ORDER_DOC_REFERENCES_INT - Document Reference Type as SOURCE_SUBSCRIPTION_ASSOC