I couldn't really get answers about this, so I figure experts in MR might know.

I was looking at trip of RDU-JFK-SEA-BOS-RDU

In this trip, SEA-BOS in operated by Alaska Airlines.

What happens with RDU DMQM promo and Alaska Airline double miles promo?

First of all, is it combine-able?

Second, if it is, do I get DMQMs(except SEA-BOS route), and DRDM for whole round trip for Alaska Air promo?

If it is not combine-able, and I'm registered in both promos, what will happen?


Edit: All flights are DL flights, except SEA-BOS is DL code share, operate by Alaska Airline.