I think I just screwed up, I will be 300 miles short of retaining gold if this is the case. Please confirm my thinking, I just purchased through our corporate travel site a 3 segment flight on CO, the first day the two flights are on NW metal, CO coded, fare class S, which earns only 50% on CO.

I assume I will only earn 50% on NW correct? I looked online and NW is showing fare class K which would earn 100% but I assume they will only credit me 50%. Please confirm. Thanks in advance.