diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/AdType.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/AdType.java
index 04c02d456..f7844bf5e 100644
--- a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/AdType.java
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/AdType.java
@@ -16,7 +16,7 @@
 
 package org.prebid.mobile;
 
-enum AdType {
+public enum AdType {
     BANNER,
     INTERSTITIAL,
     NATIVE,
diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/NativeRequestParams.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/NativeRequestParams.java
index 6b3154140..d6f6136af 100644
--- a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/NativeRequestParams.java
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/NativeRequestParams.java
@@ -5,7 +5,7 @@
 
 import java.util.ArrayList;
 
-class NativeRequestParams {
+public class NativeRequestParams {
     //    // constants
     static String VERSION = "ver";
     static String SUPPORTED_VERSION = "1.2";
diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/AdUnitConfiguration.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/AdUnitConfiguration.java
new file mode 100644
index 000000000..ea3f610bd
--- /dev/null
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/AdUnitConfiguration.java
@@ -0,0 +1,56 @@
+package org.prebid.mobile.unification;
+
+import org.prebid.mobile.AdSize;
+import org.prebid.mobile.BannerBaseAdUnit;
+import org.prebid.mobile.VideoBaseAdUnit;
+
+import java.util.HashSet;
+
+public class AdUnitConfiguration extends BaseAdUnitConfiguration implements AdUnitConfigurationInterface {
+
+    private AdSize minSizePercentage;
+    private HashSet<AdSize> sizes;
+    private BannerBaseAdUnit.Parameters bannerParameters;
+    private VideoBaseAdUnit.Parameters videoParameters;
+
+    @Override
+    public void setMinSizePercentage(AdSize minSizePercentage) {
+        this.minSizePercentage = minSizePercentage;
+    }
+
+    @Override
+    public AdSize getMinSizePercentage() {
+        return minSizePercentage;
+    }
+
+    @Override
+    public void addSize(AdSize additionalSize) {
+        sizes.add(additionalSize);
+    }
+
+    @Override
+    public HashSet<AdSize> getSizes() {
+        return sizes;
+    }
+
+    @Override
+    public void setBannerParameters(BannerBaseAdUnit.Parameters parameters) {
+        bannerParameters = parameters;
+    }
+
+    @Override
+    public BannerBaseAdUnit.Parameters getBannerParameters() {
+        return bannerParameters;
+    }
+
+    @Override
+    public void setVideoParameters(VideoBaseAdUnit.Parameters parameters) {
+        videoParameters = parameters;
+    }
+
+    @Override
+    public VideoBaseAdUnit.Parameters getVideoParameters() {
+        return videoParameters;
+    }
+
+}
diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/AdUnitConfigurationInterface.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/AdUnitConfigurationInterface.java
new file mode 100644
index 000000000..24cf262c1
--- /dev/null
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/AdUnitConfigurationInterface.java
@@ -0,0 +1,30 @@
+package org.prebid.mobile.unification;
+
+import org.prebid.mobile.AdSize;
+import org.prebid.mobile.BannerBaseAdUnit;
+import org.prebid.mobile.VideoBaseAdUnit;
+
+import java.util.HashSet;
+
+public interface AdUnitConfigurationInterface extends BaseAdUnitConfigurationInterface {
+
+    public void setMinSizePercentage(AdSize minSizePercentage);
+
+    public AdSize getMinSizePercentage();
+
+
+    public void addSize(AdSize additionalSize);
+
+    public HashSet<AdSize> getSizes();
+
+
+    public void setBannerParameters(BannerBaseAdUnit.Parameters parameters);
+
+    public BannerBaseAdUnit.Parameters getBannerParameters();
+
+
+    public void setVideoParameters(VideoBaseAdUnit.Parameters parameters);
+
+    public VideoBaseAdUnit.Parameters getVideoParameters();
+
+}
diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/BaseAdUnitConfiguration.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/BaseAdUnitConfiguration.java
new file mode 100644
index 000000000..faa3845a8
--- /dev/null
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/BaseAdUnitConfiguration.java
@@ -0,0 +1,142 @@
+package org.prebid.mobile.unification;
+
+import androidx.annotation.NonNull;
+import org.prebid.mobile.AdType;
+import org.prebid.mobile.ContentObject;
+import org.prebid.mobile.DataObject;
+
+import java.util.*;
+
+public abstract class BaseAdUnitConfiguration implements BaseAdUnitConfigurationInterface {
+
+    private AdType adType;
+    private String configId;
+    private ContentObject appContent;
+    private String pbAdSlot;
+    private final ArrayList<DataObject> userDataObjects = new ArrayList<>();
+    private final Map<String, Set<String>> contextDataDictionary = new HashMap<>();
+    private final Set<String> contextKeywordsSet = new HashSet<>();
+
+    @Override
+    public void setAdType(AdType adType) {
+        this.adType = adType;
+    }
+
+    @Override
+    public AdType getAdType() {
+        return adType;
+    }
+
+    @Override
+    public void setConfigId(String configId) {
+        this.configId = configId;
+    }
+
+    @Override
+    public String getConfigId() {
+        return configId;
+    }
+
+    @Override
+    public void setAppContent(ContentObject content) {
+        appContent = content;
+    }
+
+    @Override
+    public ContentObject getAppContent() {
+        return appContent;
+    }
+
+    @Override
+    public void setPbAdSlot(String pbAdSlot) {
+        this.pbAdSlot = pbAdSlot;
+    }
+
+    @Override
+    public String getPbAdSlot() {
+        return pbAdSlot;
+    }
+
+    @Override
+    public void addUserData(DataObject dataObject) {
+        if (dataObject != null) {
+            userDataObjects.add(dataObject);
+        }
+    }
+
+    @Override
+    @NonNull
+    public ArrayList<DataObject> getUserData() {
+        return userDataObjects;
+    }
+
+    @Override
+    public void clearUserData() {
+        userDataObjects.clear();
+    }
+
+    @Override
+    public void addContextData(String key, String value) {
+        if (key != null && value != null) {
+            HashSet<String> hashSet = new HashSet<>();
+            hashSet.add(value);
+            contextDataDictionary.put(key, hashSet);
+        }
+    }
+
+    @Override
+    public void updateContextData(String key, Set<String> value) {
+        if (key != null && value != null) {
+            contextDataDictionary.put(key, value);
+        }
+    }
+
+    @Override
+    public void removeContextData(String key) {
+        contextDataDictionary.remove(key);
+    }
+
+    @Override
+    @NonNull
+    public Map<String, Set<String>> getContextDataDictionary() {
+        return contextDataDictionary;
+    }
+
+    @Override
+    public void clearContextData() {
+        contextDataDictionary.clear();
+    }
+
+    @Override
+    public void addContextKeyword(String keyword) {
+        if (keyword != null) {
+            contextKeywordsSet.add(keyword);
+        }
+    }
+
+    @Override
+    public void addContextKeywords(Set<String> keywords) {
+        if (keywords != null) {
+            contextKeywordsSet.addAll(keywords);
+        }
+    }
+
+    @Override
+    public void removeContextKeywords(String key) {
+        if (key != null) {
+            contextKeywordsSet.remove(key);
+        }
+    }
+
+    @Override
+    @NonNull
+    public Set<String> getContextKeywordsSet() {
+        return contextKeywordsSet;
+    }
+
+    @Override
+    public void clearContextKeywords() {
+        contextKeywordsSet.clear();
+    }
+
+}
diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/BaseAdUnitConfigurationInterface.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/BaseAdUnitConfigurationInterface.java
new file mode 100644
index 000000000..83a349488
--- /dev/null
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/BaseAdUnitConfigurationInterface.java
@@ -0,0 +1,61 @@
+package org.prebid.mobile.unification;
+
+import org.prebid.mobile.AdType;
+import org.prebid.mobile.ContentObject;
+import org.prebid.mobile.DataObject;
+
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.Set;
+
+public abstract interface BaseAdUnitConfigurationInterface {
+
+    public void setAdType(AdType adType);
+
+    public AdType getAdType();
+
+
+    public void setConfigId(String configId);
+
+    public String getConfigId();
+
+
+    public void setAppContent(ContentObject content);
+
+    public ContentObject getAppContent();
+
+
+    public void setPbAdSlot(String pbAdSlot);
+
+    public String getPbAdSlot();
+
+
+    public void addUserData(DataObject dataObject);
+
+    public ArrayList<DataObject> getUserData();
+
+    public void clearUserData();
+
+
+    public void addContextData(String key, String value);
+
+    public void updateContextData(String key, Set<String> value);
+
+    public void removeContextData(String key);
+
+    public Map<String, Set<String>> getContextDataDictionary();
+
+    public void clearContextData();
+
+
+    public void addContextKeyword(String keyword);
+
+    public void addContextKeywords(Set<String> keywords);
+
+    public void removeContextKeywords(String key);
+
+    public Set<String> getContextKeywordsSet();
+
+    public void clearContextKeywords();
+
+}
diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/NativeAdUnitConfiguration.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/NativeAdUnitConfiguration.java
new file mode 100644
index 000000000..7eba82ed3
--- /dev/null
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/NativeAdUnitConfiguration.java
@@ -0,0 +1,144 @@
+package org.prebid.mobile.unification;
+
+import org.json.JSONObject;
+import org.prebid.mobile.NativeAdUnit;
+import org.prebid.mobile.NativeAsset;
+import org.prebid.mobile.NativeEventTracker;
+
+import java.util.ArrayList;
+
+public class NativeAdUnitConfiguration extends BaseAdUnitConfiguration implements NativeAdUnitConfigurationInterface {
+
+    private final ArrayList<NativeAsset> nativeAssets = new ArrayList<>();
+    private final ArrayList<NativeEventTracker> nativeEventTrackers = new ArrayList<>();
+    private NativeAdUnit.CONTEXT_TYPE contextType;
+    private NativeAdUnit.CONTEXTSUBTYPE contextSubtype;
+    private NativeAdUnit.PLACEMENTTYPE placementType;
+    private Integer placementCount;
+    private Integer sequence;
+    private Boolean aUrlSupport;
+    private Boolean dUrlSupport;
+    private Boolean privacy;
+    private JSONObject ext;
+
+    @Override
+    public void addEventTracker(NativeEventTracker tracker) {
+        nativeEventTrackers.add(tracker);
+    }
+
+    @Override
+    public ArrayList<NativeEventTracker> getNativeEventTrackers() {
+        return nativeEventTrackers;
+    }
+
+    @Override
+    public void clearNativeEventTrackers() {
+        nativeEventTrackers.clear();
+    }
+
+    @Override
+    public void addAsset(NativeAsset nativeAsset) {
+        nativeAssets.add(nativeAsset);
+    }
+
+    @Override
+    public ArrayList<NativeAsset> getNativeAssets() {
+        return nativeAssets;
+    }
+
+    @Override
+    public void clearNativeAssets() {
+        nativeAssets.clear();
+    }
+
+    @Override
+    public void setContextType(NativeAdUnit.CONTEXT_TYPE contextType) {
+        this.contextType = contextType;
+    }
+
+    @Override
+    public NativeAdUnit.CONTEXT_TYPE getContextType() {
+        return contextType;
+    }
+
+    @Override
+    public void setContextSubtype(NativeAdUnit.CONTEXTSUBTYPE contextSubtype) {
+        this.contextSubtype = contextSubtype;
+    }
+
+    @Override
+    public NativeAdUnit.CONTEXTSUBTYPE getContextSubtype() {
+        return contextSubtype;
+    }
+
+    @Override
+    public void setPlacementType(NativeAdUnit.PLACEMENTTYPE placementType) {
+        this.placementType = placementType;
+    }
+
+    @Override
+    public NativeAdUnit.PLACEMENTTYPE getPlacementType() {
+        return placementType;
+    }
+
+    @Override
+    public void setPlacementCount(int placementCount) {
+        this.placementCount = placementCount;
+    }
+
+    @Override
+    public Integer getPlacementCount() {
+        return placementCount;
+    }
+
+    @Override
+    public void setSeq(int seq) {
+        this.sequence = seq;
+    }
+
+    @Override
+    public Integer getSeq() {
+        return sequence;
+    }
+
+    @Override
+    public void setAUrlSupport(boolean support) {
+        aUrlSupport = support;
+    }
+
+    @Override
+    public Boolean getAUrlSupport() {
+        return aUrlSupport;
+    }
+
+    @Override
+    public void setDUrlSupport(boolean support) {
+        dUrlSupport = support;
+    }
+
+    @Override
+    public Boolean getDUrlSupport() {
+        return dUrlSupport;
+    }
+
+    @Override
+    public void setPrivacy(boolean privacy) {
+        this.privacy = privacy;
+    }
+
+    @Override
+    public Boolean getPrivacy() {
+        return privacy;
+    }
+
+    @Override
+    public void setExt(JSONObject ext) {
+        this.ext = ext;
+    }
+
+    @Override
+    public JSONObject getExt() {
+        return ext;
+    }
+
+}
diff --git a/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/NativeAdUnitConfigurationInterface.java b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/NativeAdUnitConfigurationInterface.java
new file mode 100644
index 000000000..ac1208a90
--- /dev/null
+++ b/PrebidMobile/PrebidMobile-core/src/main/java/org/prebid/mobile/unification/NativeAdUnitConfigurationInterface.java
@@ -0,0 +1,62 @@
+package org.prebid.mobile.unification;
+
+import org.json.JSONObject;
+import org.prebid.mobile.NativeAdUnit;
+import org.prebid.mobile.NativeAsset;
+import org.prebid.mobile.NativeEventTracker;
+
+import java.util.ArrayList;
+
+public interface NativeAdUnitConfigurationInterface extends BaseAdUnitConfigurationInterface {
+
+    public void addEventTracker(NativeEventTracker tracker);
+
+    public ArrayList<NativeEventTracker> getNativeEventTrackers();
+
+    public void clearNativeEventTrackers();
+
+
+    public void addAsset(NativeAsset nativeAsset);
+
+    public ArrayList<NativeAsset> getNativeAssets();
+
+    public void clearNativeAssets();
+
+
+    public void setContextType(NativeAdUnit.CONTEXT_TYPE contextType);
+
+    public NativeAdUnit.CONTEXT_TYPE getContextType();
+
+    public void setContextSubtype(NativeAdUnit.CONTEXTSUBTYPE contextSubType);
+
+    public NativeAdUnit.CONTEXTSUBTYPE getContextSubtype();
+
+    public void setPlacementType(NativeAdUnit.PLACEMENTTYPE placementType);
+
+    public NativeAdUnit.PLACEMENTTYPE getPlacementType();
+
+    public void setPlacementCount(int placementCount);
+
+    public Integer getPlacementCount();
+
+    public void setSeq(int seq);
+
+    public Integer getSeq();
+
+    public void setAUrlSupport(boolean support);
+
+    public Boolean getAUrlSupport();
+
+    public void setDUrlSupport(boolean support);
+
+    public Boolean getDUrlSupport();
+
+    public void setPrivacy(boolean privacy);
+
+    public Boolean getPrivacy();
+
+    public void setExt(JSONObject jsonObject);
+
+    public JSONObject getExt();
+
+}