diff --git a/src/test/groovy/org/prebid/server/functional/model/request/auction/UserExt.groovy b/src/test/groovy/org/prebid/server/functional/model/request/auction/UserExt.groovy
index 871d1133619..a516d2ec0a9 100644
--- a/src/test/groovy/org/prebid/server/functional/model/request/auction/UserExt.groovy
+++ b/src/test/groovy/org/prebid/server/functional/model/request/auction/UserExt.groovy
@@ -1,9 +1,12 @@
 package org.prebid.server.functional.model.request.auction
 
 import com.fasterxml.jackson.annotation.JsonProperty
+import com.fasterxml.jackson.databind.PropertyNamingStrategies
+import com.fasterxml.jackson.databind.annotation.JsonNaming
 import groovy.transform.ToString
 
 @ToString(includeNames = true, ignoreNulls = true)
+@JsonNaming(PropertyNamingStrategies.SnakeCaseStrategy)
 class UserExt {
 
     String consent
@@ -12,8 +15,9 @@ class UserExt {
     UserTime time
     UserExtData data
     UserExtPrebid prebid
-    @JsonProperty("consented_providers_settings")
     ConsentedProvidersSettings consentedProvidersSettings
+    @JsonProperty("ConsentedProvidersSettings")
+    ConsentedProvidersSettings consentedProvidersSettingsKebabCase
 
     static UserExt getFPDUserExt() {
         new UserExt(data: UserExtData.FPDUserExtData)
diff --git a/src/test/groovy/org/prebid/server/functional/tests/AmpSpec.groovy b/src/test/groovy/org/prebid/server/functional/tests/AmpSpec.groovy
index f8e668ff3b0..4fb105da993 100644
--- a/src/test/groovy/org/prebid/server/functional/tests/AmpSpec.groovy
+++ b/src/test/groovy/org/prebid/server/functional/tests/AmpSpec.groovy
@@ -4,9 +4,12 @@ import org.prebid.server.functional.model.db.StoredRequest
 import org.prebid.server.functional.model.db.StoredResponse
 import org.prebid.server.functional.model.request.amp.AmpRequest
 import org.prebid.server.functional.model.request.auction.BidRequest
+import org.prebid.server.functional.model.request.auction.ConsentedProvidersSettings
 import org.prebid.server.functional.model.request.auction.DistributionChannel
 import org.prebid.server.functional.model.request.auction.Site
 import org.prebid.server.functional.model.request.auction.StoredAuctionResponse
+import org.prebid.server.functional.model.request.auction.User
+import org.prebid.server.functional.model.request.auction.UserExt
 import org.prebid.server.functional.model.response.auction.SeatBid
 import org.prebid.server.functional.service.PrebidServerException
 import org.prebid.server.functional.util.PBSUtils
@@ -56,7 +59,7 @@ class AmpSpec extends BaseSpec {
         assert exception.responseBody == "Invalid request format: request.${channel.value.toLowerCase()} must not exist in AMP stored requests."
 
         where:
-        channel  << [DistributionChannel.APP, DistributionChannel.DOOH]
+        channel << [DistributionChannel.APP, DistributionChannel.DOOH]
     }
 
     def "PBS should return info from the stored response when it's defined in the stored request"() {
@@ -189,7 +192,36 @@ class AmpSpec extends BaseSpec {
         }
 
         and: "Save storedRequest into DB"
-        def ampStoredRequest = BidRequest.defaultBidRequest
+        def ampStoredRequest = BidRequest.defaultBidRequest.tap {
+            user = new User(ext: new UserExt(
+                    consentedProvidersSettingsKebabCase: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString),
+                    consentedProvidersSettings: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString)))
+        }
+        def storedRequest = StoredRequest.getStoredRequest(ampRequest, ampStoredRequest)
+        storedRequestDao.save(storedRequest)
+
+        when: "PBS processes amp request"
+        defaultPbsService.sendAmpRequest(ampRequest)
+
+        then: "Bidder request should contain addtl consent"
+        def bidderRequest = bidder.getBidderRequest(ampStoredRequest.id)
+        assert bidderRequest.user.ext.consentedProvidersSettingsKebabCase.consentedProviders == randomAddtlConsent
+        assert bidderRequest.user.ext.consentedProvidersSettings.consentedProviders == randomAddtlConsent
+    }
+
+    def "PBS should pass addtl_consent to user.ext.ConsentedProvidersSettings.consented_providers"() {
+        given: "Default amp request with addtlConsent"
+        def randomAddtlConsent = PBSUtils.randomString
+        def ampRequest = AmpRequest.defaultAmpRequest.tap {
+            addtlConsent = randomAddtlConsent
+        }
+
+        and: "Save storedRequest into DB"
+        def ampStoredRequest = BidRequest.defaultBidRequest.tap {
+            user = new User(ext: new UserExt(
+                    consentedProvidersSettingsKebabCase: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString),
+                    consentedProvidersSettings: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString)))
+        }
         def storedRequest = StoredRequest.getStoredRequest(ampRequest, ampStoredRequest)
         storedRequestDao.save(storedRequest)
 
@@ -198,6 +230,7 @@ class AmpSpec extends BaseSpec {
 
         then: "Bidder request should contain addtl consent"
         def bidderRequest = bidder.getBidderRequest(ampStoredRequest.id)
+        assert bidderRequest.user.ext.consentedProvidersSettingsKebabCase.consentedProviders == randomAddtlConsent
         assert bidderRequest.user.ext.consentedProvidersSettings.consentedProviders == randomAddtlConsent
     }
 
@@ -208,7 +241,35 @@ class AmpSpec extends BaseSpec {
         }
 
         and: "Save storedRequest into DB"
-        def ampStoredRequest = BidRequest.defaultBidRequest
+        def ampStoredRequest = BidRequest.defaultBidRequest.tap {
+            user = new User(ext: new UserExt(
+                    consentedProvidersSettingsKebabCase: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString),
+                    consentedProvidersSettings: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString)))
+        }
+        def storedRequest = StoredRequest.getStoredRequest(ampRequest, ampStoredRequest)
+        storedRequestDao.save(storedRequest)
+
+        when: "PBS processes amp request"
+        defaultPbsService.sendAmpRequest(ampRequest)
+
+        then: "Bidder request shouldn't contain addtl consent"
+        def bidderRequest = bidder.getBidderRequest(ampStoredRequest.id)
+        assert !bidderRequest.user.ext.consentedProvidersSettings.consentedProviders
+        assert !bidderRequest.user.ext.consentedProvidersSettingsKebabCase.consentedProviders
+    }
+
+    def "PBS shouldn't pass addtl_consent to user.ext.ConsentedProvidersSettings.consented_providers when addtl_consent not specified"() {
+        given: "Default amp request without addtl_consent"
+        def ampRequest = AmpRequest.defaultAmpRequest.tap {
+            addtlConsent = null
+        }
+
+        and: "Save storedRequest into DB"
+        def ampStoredRequest = BidRequest.defaultBidRequest.tap {
+            user = new User(ext: new UserExt(
+                    consentedProvidersSettingsKebabCase: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString),
+                    consentedProvidersSettings: new ConsentedProvidersSettings(consentedProviders: PBSUtils.randomString)))
+        }
         def storedRequest = StoredRequest.getStoredRequest(ampRequest, ampStoredRequest)
         storedRequestDao.save(storedRequest)
 
@@ -218,5 +279,6 @@ class AmpSpec extends BaseSpec {
         then: "Bidder request shouldn't contain addtl consent"
         def bidderRequest = bidder.getBidderRequest(ampStoredRequest.id)
         assert !bidderRequest.user.ext.consentedProvidersSettings.consentedProviders
+        assert !bidderRequest.user.ext.consentedProvidersSettingsKebabCase.consentedProviders
     }
 }