DMT Sales Order Combined Unit Price

I have done a few tests today importing orders, lines, and releases. The only data I can’t seem to populate is the unit price.
I have these all populated on the template.
OrderDtl#UnitPrice
OrderDtl#DocUnitPrice
Orderdtl#DspUnitPrice
What field am I missing?

I am sending OrderDtl#DocDspUnitPrice and OrderDtl#LockPrice is set to True