diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKAddToCart.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKAddToCart.m
index 01ce2e0e..aa5eaf6e 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKAddToCart.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKAddToCart.m
@@ -1,4 +1,5 @@
 #import "VSDKAddToCart.h"
+#import "VSDKProduct.h"
 
 @implementation VSDKAddToCart
 
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrder.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrder.m
index 0b425638..ecb513bc 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrder.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrder.m
@@ -2,4 +2,10 @@
 
 @implementation VSDKOrder
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"promotions"])
+        return [NSString class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrderPlace.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrderPlace.m
index 9665582e..33f99d89 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrderPlace.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKOrderPlace.m
@@ -1,3 +1,4 @@
+#import "VSDKLineItem.h"
 #import "VSDKOrderPlace.h"
 
 @implementation VSDKOrderPlace
@@ -9,4 +10,10 @@ - (instancetype) init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"lineItems"])
+        return [VSDKLineItem class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProduct.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProduct.m
index 7d81d6d8..af2865c1 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProduct.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProduct.m
@@ -9,4 +9,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"parts"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductClick.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductClick.m
index 668fdbe9..0bc13369 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductClick.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductClick.m
@@ -1,3 +1,4 @@
+#import "VSDKProduct.h"
 #import "VSDKProductClick.h"
 
 @implementation VSDKProductClick
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductCustomization.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductCustomization.m
index 5cb383ce..c0f65b97 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductCustomization.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductCustomization.m
@@ -1,3 +1,4 @@
+#import "VSDKProduct.h"
 #import "VSDKProductCustomization.h"
 
 @implementation VSDKProductCustomization
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductFeedback.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductFeedback.m
index 865a7ddc..db3c5f9f 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductFeedback.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductFeedback.m
@@ -1,3 +1,4 @@
+#import "VSDKProduct.h"
 #import "VSDKProductFeedback.h"
 
 @implementation VSDKProductFeedback
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductImpression.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductImpression.m
index 7136d9c1..6eb7233e 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductImpression.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductImpression.m
@@ -1,3 +1,4 @@
+#import "VSDKProduct.h"
 #import "VSDKProductImpression.h"
 
 @implementation VSDKProductImpression
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductView.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductView.m
index 74baa649..bc8635a9 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductView.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductView.m
@@ -1,3 +1,4 @@
+#import "VSDKProduct.h"
 #import "VSDKProductView.h"
 
 @implementation VSDKProductView
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductViewDetails.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductViewDetails.m
index 212be92b..f9b6c6ed 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductViewDetails.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKProductViewDetails.m
@@ -1,3 +1,4 @@
+#import "VSDKProduct.h"
 #import "VSDKProductViewDetails.h"
 
 @implementation VSDKProductViewDetails
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end
diff --git a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKRemoveFromCart.m b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKRemoveFromCart.m
index 8a3329d6..6d8cc7c5 100644
--- a/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKRemoveFromCart.m
+++ b/VelocidiSDK/VelocidiSDK/Tracking/Model/VSDKRemoveFromCart.m
@@ -1,3 +1,4 @@
+#import "VSDKProduct.h"
 #import "VSDKRemoveFromCart.h"
 
 @implementation VSDKRemoveFromCart
@@ -9,4 +10,10 @@ - (instancetype)init {
     return self;
 }
 
++ (Class)classForCollectionProperty:(NSString *)propertyName {
+    if ([propertyName isEqualToString:@"products"])
+        return [VSDKProduct class];
+    return nil;
+}
+
 @end