How to access Delta Comfort+ price and seatmap with Amadeus APIs? - amadeus

Question

I need help retrieving flight offers and seat map information for Delta Comfort+ seats using the Amadeus flight APIs.
I've seen Comfort+ described as "both fare and ancillary seat purchase options" that are "booked in W and S classes", and this site gives methods for recognizing a Comfort+ offer using the fare basis code.
I think I've tried most or all of the parameters in the Flight Offers Search API (shopping/flight-offers) and haven't been able to get back any results I can identify as Comfort+ using those methods.
I've also tried the upsell API (/shopping/flight-offers/upselling), which I can get to return main cabin offers based on a submitted basic economy offer, but nothing higher.
And in the seatmap API (/shopping/seatmaps), I'm only seeing seats in the economy section and not those in the Comfort+ section... probably because I've only been able to submit economy flight offers to it.
If anyone could point me in the right direction, I'd really appreciate it. Thanks!
---- added in response to jabrena's request --------------------------
After a bunch of trial and error, I was able to locate a Comfort+ offer and retrieve a seatmap of the Comfort+ section of the main cabin. The steps were:
search flight-offers using pricingOptions.noPenaltyFare=true or pricingOptions.refundableFare=true. (Without these pricingOptions, the returned offers couldn't be upgraded to comfort+ using the upselling API)
submit one of the returned flight offers to the upselling API
locate a returned offer with a fareDetailsBySegment.class of S or W and submit it to the seatmap API.
Here is the flight-offers call (using the Node SDK). The upselling and seatmap calls were populated as I described above
amadeus.shopping.flightOffersSearch.post(JSON.stringify({
currencyCode: "USD",
originDestinations: [
{
id: "1",
originLocationCode: 'MSP',
destinationLocationCode: 'ARN',
departureDateTimeRange: {
date: '2022-04-14'
}
},
{
id: "2",
originLocationCode: 'ARN',
destinationLocationCode: 'MSP',
departureDateTimeRange: {
date: '2022-04-18'
}
}
],
travelers: [
{
id: "1",
travelerType: "ADULT"
}
],
sources: [
"GDS"
],
searchCriteria: {
maxFlightOffers: 200,
additionalInformation: {
brandedFares: true
},
allowAlternativeFareOptions : true,
flightFilters: {
carrierRestrictions: {
includedCarrierCodes: [
"DL",
"AF",
"KL"
]
}
},
pricingOptions: {
noPenaltyFare: true
}
}
})).then(function (response) {
resolve(response);
}).catch(function (response) {
resolve(JSON.stringify(response));
});
Couple points:
I tried the offers API's pricingOptions in a bunch of different combinations. Using pricingOptions.noPenaltyFare=true or pricingOptions.refundableFare=true were the only ways I could get back offers with the classes that would cause the upselling API to return Comfort+ offers
using the PREMIUM_ECONOMY cabinRestriction returned offers that are a class above Comfort+, with seats located outside of the Comfort+ section
using pricingOptions = 'noRestrictionFare=true' returns class Y (full fare), but submitting that to seatmap returns only the non-comfort+ seats, and submitting a Y class offer to the upsell API returned only 1st class (Delta One) and economy amenities... not a Comfort+ option
This feels a little random, and I'm not confident that this is the best way to approach this... Is there any documentation that can help reduce the guesswork?
Thanks!