diff --git a/plugins/woocommerce/src/Admin/API/MarketingCampaigns.php b/plugins/woocommerce/src/Admin/API/MarketingCampaigns.php
index 8316d9ef11f8..d8f9ac793786 100644
--- a/plugins/woocommerce/src/Admin/API/MarketingCampaigns.php
+++ b/plugins/woocommerce/src/Admin/API/MarketingCampaigns.php
@@ -143,7 +143,7 @@ public function get_items( $request ) {
 	public function prepare_item_for_response( $item, $request ) {
 		$data = [
 			'id'         => $item->get_id(),
-			'channel'    => $item->get_channel()->get_slug(),
+			'channel'    => $item->get_type()->get_channel()->get_slug(),
 			'title'      => $item->get_title(),
 			'manage_url' => $item->get_manage_url(),
 		];
diff --git a/plugins/woocommerce/src/Admin/Marketing/MarketingCampaign.php b/plugins/woocommerce/src/Admin/Marketing/MarketingCampaign.php
index 45037fea367f..c85ced83f213 100644
--- a/plugins/woocommerce/src/Admin/Marketing/MarketingCampaign.php
+++ b/plugins/woocommerce/src/Admin/Marketing/MarketingCampaign.php
@@ -7,14 +7,12 @@
 
 namespace Automattic\WooCommerce\Admin\Marketing;
 
-use JsonSerializable;
-
 /**
  * MarketingCampaign class
  *
  * @since x.x.x
  */
-class MarketingCampaign implements JsonSerializable {
+class MarketingCampaign {
 	/**
 	 * The unique identifier.
 	 *
@@ -23,11 +21,11 @@ class MarketingCampaign implements JsonSerializable {
 	protected $id;
 
 	/**
-	 * The marketing channel that this campaign belongs to.
+	 * The marketing campaign type.
 	 *
-	 * @var MarketingChannelInterface
+	 * @var MarketingCampaignType
 	 */
-	protected $channel;
+	protected $type;
 
 	/**
 	 * Title of the marketing campaign.
@@ -53,15 +51,15 @@ class MarketingCampaign implements JsonSerializable {
 	/**
 	 * MarketingCampaign constructor.
 	 *
-	 * @param string                    $id         The marketing campaign's unique identifier.
-	 * @param MarketingChannelInterface $channel    The marketing channel that this campaign belongs to.
-	 * @param string                    $title      The title of the marketing campaign.
-	 * @param string                    $manage_url The URL to the channel's campaign management page.
-	 * @param Price|null                $cost       The cost of the marketing campaign with the currency.
+	 * @param string                $id         The marketing campaign's unique identifier.
+	 * @param MarketingCampaignType $type       The marketing campaign type.
+	 * @param string                $title      The title of the marketing campaign.
+	 * @param string                $manage_url The URL to the channel's campaign management page.
+	 * @param Price|null            $cost       The cost of the marketing campaign with the currency.
 	 */
-	public function __construct( string $id, MarketingChannelInterface $channel, string $title, string $manage_url, Price $cost = null ) {
+	public function __construct( string $id, MarketingCampaignType $type, string $title, string $manage_url, Price $cost = null ) {
 		$this->id         = $id;
-		$this->channel    = $channel;
+		$this->type       = $type;
 		$this->title      = $title;
 		$this->manage_url = $manage_url;
 		$this->cost       = $cost;
@@ -77,12 +75,12 @@ public function get_id(): string {
 	}
 
 	/**
-	 * Returns the marketing channel that this campaign belongs to.
+	 * Returns the marketing campaign type.
 	 *
-	 * @return MarketingChannelInterface
+	 * @return MarketingCampaignType
 	 */
-	public function get_channel(): MarketingChannelInterface {
-		return $this->channel;
+	public function get_type(): MarketingCampaignType {
+		return $this->type;
 	}
 
 	/**
@@ -111,19 +109,4 @@ public function get_manage_url(): string {
 	public function get_cost(): ?Price {
 		return $this->cost;
 	}
-
-	/**
-	 * Serialize the marketing campaign data.
-	 *
-	 * @return array
-	 */
-	public function jsonSerialize() {
-		return [
-			'id'         => $this->get_id(),
-			'channel'    => $this->get_channel()->get_slug(),
-			'title'      => $this->get_title(),
-			'manage_url' => $this->get_manage_url(),
-			'cost'       => $this->get_cost(),
-		];
-	}
 }
diff --git a/plugins/woocommerce/tests/php/src/Admin/Marketing/MarketingCampaignTest.php b/plugins/woocommerce/tests/php/src/Admin/Marketing/MarketingCampaignTest.php
index 30d8c243ba57..4277cff9437f 100644
--- a/plugins/woocommerce/tests/php/src/Admin/Marketing/MarketingCampaignTest.php
+++ b/plugins/woocommerce/tests/php/src/Admin/Marketing/MarketingCampaignTest.php
@@ -3,7 +3,7 @@
 namespace Automattic\WooCommerce\Tests\Admin\Marketing;
 
 use Automattic\WooCommerce\Admin\Marketing\MarketingCampaign;
-use Automattic\WooCommerce\Admin\Marketing\MarketingChannelInterface;
+use Automattic\WooCommerce\Admin\Marketing\MarketingCampaignType;
 use Automattic\WooCommerce\Admin\Marketing\Price;
 use WC_Unit_Test_Case;
 
@@ -13,15 +13,15 @@
 class MarketingCampaignTest extends WC_Unit_Test_Case {
 
 	/**
-	 * @testdox `get_id`, `get_title`, `get_manage_url`, and `get_cost` return the class properties set by the constructor.
+	 * @testdox `get_id`, `get_type`, `get_title`, `get_manage_url`, and `get_cost` return the class properties set by the constructor.
 	 */
 	public function test_get_methods_return_properties() {
-		$test_channel_1 = $this->createMock( MarketingChannelInterface::class );
-		$test_channel_1->expects( $this->any() )->method( 'get_slug' )->willReturn( 'test-channel-1' );
+		$test_campaign_type_1 = $this->createMock( MarketingCampaignType::class );
 
-		$marketing_campaign = new MarketingCampaign( '1234', $test_channel_1, 'Ad #1234', 'https://example.com/manage-campaigns', new Price( '1000', 'USD' ) );
+		$marketing_campaign = new MarketingCampaign( '1234', $test_campaign_type_1, 'Ad #1234', 'https://example.com/manage-campaigns', new Price( '1000', 'USD' ) );
 
 		$this->assertEquals( '1234', $marketing_campaign->get_id() );
+		$this->assertEquals( $test_campaign_type_1, $marketing_campaign->get_type() );
 		$this->assertEquals( 'Ad #1234', $marketing_campaign->get_title() );
 		$this->assertEquals( 'https://example.com/manage-campaigns', $marketing_campaign->get_manage_url() );
 		$this->assertNotNull( $marketing_campaign->get_cost() );
@@ -33,36 +33,10 @@ public function test_get_methods_return_properties() {
 	 * @testdox `cost` property can be null.
 	 */
 	public function test_cost_can_be_null() {
-		$test_channel_1 = $this->createMock( MarketingChannelInterface::class );
+		$test_campaign_type_1 = $this->createMock( MarketingCampaignType::class );
 
-		$marketing_campaign = new MarketingCampaign( '1234', $test_channel_1, 'Ad #1234', 'https://example.com/manage-campaigns' );
+		$marketing_campaign = new MarketingCampaign( '1234', $test_campaign_type_1, 'Ad #1234', 'https://example.com/manage-campaigns' );
 
 		$this->assertNull( $marketing_campaign->get_cost() );
 	}
-
-	/**
-	 * @testdox It can be serialized to JSON including all its properties.
-	 */
-	public function test_can_be_serialized_to_json() {
-		$test_channel_1 = $this->createMock( MarketingChannelInterface::class );
-		$test_channel_1->expects( $this->any() )->method( 'get_slug' )->willReturn( 'test-channel-1' );
-
-		$marketing_campaign = new MarketingCampaign( '1234', $test_channel_1, 'Ad #1234', 'https://example.com/manage-campaigns', new Price( '1000', 'USD' ) );
-
-		$json = wp_json_encode( $marketing_campaign );
-		$this->assertNotEmpty( $json );
-		$this->assertEqualSets(
-			[
-				'id'         => $marketing_campaign->get_id(),
-				'channel'    => 'test-channel-1',
-				'title'      => $marketing_campaign->get_title(),
-				'manage_url' => $marketing_campaign->get_manage_url(),
-				'cost'       => [
-					'value'    => $marketing_campaign->get_cost()->get_value(),
-					'currency' => $marketing_campaign->get_cost()->get_currency(),
-				],
-			],
-			json_decode( $json, true )
-		);
-	}
 }