Years ago, as I recall -- if ticketed by DL even with KL flight numbers, you earned based on the DL earnings charts. But if ticketed by KL (074) then whether KL or DL flight numbers, you earned by KL earning charts. Then things changed for 2018 and what mattered was the marketing carrier (flight number).
Same thing happened with a VA flight I took in Dec 2017 (new rules early). Because it was DL ticketed, I expected to earn based on fare, but the rule change meant I earned based on distance (great for MQDs).

This is the first deal I have ever booked from FT.

My flight leaves at the end of March. By early April I should know how this all gets credited to my Delta account.

I'm flying from LAX to AMS in Delta One suite. The ticket is from KLM, and the online instruction is to "check in with Delta" at the LAX airport.

My goal is to reach Platinum Medallion before the year is over.

If the flight has a KL coding it'll credit as a KLM flight even though on DL metal.

Note there's no D1 Suites on LAX/AMS. DL flies their A330, not A350 or 777. *absent an upgauge.

It doesn't apply to anyone. No ticket issued in 2017 still would be usable. It was an attempt to make KL flights earn like DL within DL program due to JV. Failed miserably due to how complicated it was, and KL didn't always send fare info, and the onward AMS flight could be to somewhere outside their JV.

This fare is gone!

Thanks for clarifying! I suspected it was something like that.

On Monday 3/25/2019 I fly from LAX to AMS with a 12 hour layover in Amsterdam from 8am to 8pm.

Then a non-stop to KUL, Malaysia. I'm staying for 7 nights before returning KUL-AMS-LAX.

Thanks for posting this deal!

Anyone still seeing this fare? I'm looking for a ~month long itinerary in October or November, no luck searching Google Flights

long gone

My BKK-DEL portion was on Jet Airways and is now cancelled. Any one have guidance or in the same boat? Will KLM take responsibility - it's a KLM ticket?