diff --git a/assets/js/components/setup/ModuleSetup.test.js b/assets/js/components/setup/ModuleSetup.test.js
index 71470ff5985..297253ec3eb 100644
--- a/assets/js/components/setup/ModuleSetup.test.js
+++ b/assets/js/components/setup/ModuleSetup.test.js
@@ -91,9 +91,7 @@ describe( 'ModuleSetup', () => {
 			const propertyID = properties[ 0 ]._id;
 			const webDataStreamID = webDataStreamsBatch[ propertyID ][ 0 ]._id;
 
-			registry.dispatch( MODULES_ANALYTICS_4 ).receiveGetSettings( {
-				adsConversionID: '',
-			} );
+			registry.dispatch( MODULES_ANALYTICS_4 ).receiveGetSettings( {} );
 
 			registry
 				.dispatch( MODULES_ANALYTICS_4 )
diff --git a/assets/js/modules/analytics-4/components/settings/OptionalSettingsView.js b/assets/js/modules/analytics-4/components/settings/OptionalSettingsView.js
index 7ed0b2dcb59..574b4c2d50b 100644
--- a/assets/js/modules/analytics-4/components/settings/OptionalSettingsView.js
+++ b/assets/js/modules/analytics-4/components/settings/OptionalSettingsView.js
@@ -20,91 +20,48 @@
  * WordPress dependencies
  */
 import { __, _x } from '@wordpress/i18n';
-import { Fragment } from '@wordpress/element';
 
 /**
  * Internal dependencies
  */
 import { useSelect } from 'googlesitekit-data';
 import { MODULES_ANALYTICS_4 } from '@/js/modules/analytics-4/datastore/constants';
-import DisplaySetting from '@/js/components/DisplaySetting';
 import { trackingExclusionLabels } from '@/js/modules/analytics-4/components/common/TrackingExclusionSwitches';
 import Typography from '@/js/components/Typography';
 
 export default function OptionalSettingsView() {
-	const useSnippet = useSelect( ( select ) =>
-		select( MODULES_ANALYTICS_4 ).getUseSnippet()
-	);
-	const adsConversionIDMigratedAtMs = useSelect( ( select ) =>
-		select( MODULES_ANALYTICS_4 ).getAdsConversionIDMigratedAtMs()
-	);
 	const trackingDisabled = useSelect(
 		( select ) => select( MODULES_ANALYTICS_4 ).getTrackingDisabled() || []
 	);
-	const adsConversionID = useSelect( ( select ) =>
-		select( MODULES_ANALYTICS_4 ).getAdsConversionID()
-	);
 
 	return (
-		<Fragment>
-			<div className="googlesitekit-settings-module__meta-items">
-				<div className="googlesitekit-settings-module__meta-item">
-					<Typography
-						as="h5"
-						size="medium"
-						type="label"
-						className="googlesitekit-settings-module__meta-item-type"
-					>
-						{ __( 'Excluded from Analytics', 'google-site-kit' ) }
-					</Typography>
-					<p className="googlesitekit-settings-module__meta-item-data">
-						{ !! trackingDisabled.length &&
-							trackingDisabled
-								.map(
-									( exclusion ) =>
-										trackingExclusionLabels[ exclusion ]
-								)
-								.join(
-									_x(
-										', ',
-										'list separator',
-										'google-site-kit'
-									)
-								) }
-						{ ! trackingDisabled.length &&
-							__(
-								'Analytics is currently enabled for all visitors',
-								'google-site-kit'
+		<div className="googlesitekit-settings-module__meta-items">
+			<div className="googlesitekit-settings-module__meta-item">
+				<Typography
+					as="h5"
+					size="medium"
+					type="label"
+					className="googlesitekit-settings-module__meta-item-type"
+				>
+					{ __( 'Excluded from Analytics', 'google-site-kit' ) }
+				</Typography>
+				<p className="googlesitekit-settings-module__meta-item-data">
+					{ !! trackingDisabled.length &&
+						trackingDisabled
+							.map(
+								( exclusion ) =>
+									trackingExclusionLabels[ exclusion ]
+							)
+							.join(
+								_x( ', ', 'list separator', 'google-site-kit' )
 							) }
-					</p>
-				</div>
+					{ ! trackingDisabled.length &&
+						__(
+							'Analytics is currently enabled for all visitors',
+							'google-site-kit'
+						) }
+				</p>
 			</div>
-
-			{ /* Prevent the Ads Conversion ID setting displaying after this field has been
-				 migrated to the Ads module, even after resetting the Analytics module. */ }
-			{ useSnippet &&
-				! adsConversionIDMigratedAtMs &&
-				!! adsConversionID && (
-					<div className="googlesitekit-settings-module__meta-items">
-						<div className="googlesitekit-settings-module__meta-item">
-							<Typography
-								as="h5"
-								size="medium"
-								type="label"
-								className="googlesitekit-settings-module__meta-item-type"
-							>
-								{ __( 'Ads Conversion ID', 'google-site-kit' ) }
-							</Typography>
-							<p className="googlesitekit-settings-module__meta-item-data">
-								{ !! adsConversionID && (
-									<DisplaySetting value={ adsConversionID } />
-								) }
-								{ ! adsConversionID &&
-									__( 'None', 'google-site-kit' ) }
-							</p>
-						</div>
-					</div>
-				) }
-		</Fragment>
+		</div>
 	);
 }
diff --git a/assets/js/modules/analytics-4/components/setup/SetupForm.stories.js b/assets/js/modules/analytics-4/components/setup/SetupForm.stories.js
index bd72d5f4413..364002eb355 100644
--- a/assets/js/modules/analytics-4/components/setup/SetupForm.stories.js
+++ b/assets/js/modules/analytics-4/components/setup/SetupForm.stories.js
@@ -83,9 +83,6 @@ export default {
 				provideSiteInfo( registry );
 				provideModuleRegistrations( registry );
 
-				registry.dispatch( MODULES_ANALYTICS_4 ).receiveGetSettings( {
-					adsConversionID: '',
-				} );
 				registry
 					.dispatch( MODULES_ANALYTICS_4 )
 					.receiveGetExistingTag( null );
diff --git a/assets/js/modules/analytics-4/components/setup/SetupForm.test.js b/assets/js/modules/analytics-4/components/setup/SetupForm.test.js
index 7e852d2a9c2..a3ae5313684 100644
--- a/assets/js/modules/analytics-4/components/setup/SetupForm.test.js
+++ b/assets/js/modules/analytics-4/components/setup/SetupForm.test.js
@@ -195,9 +195,6 @@ describe( 'SetupForm', () => {
 	} );
 
 	it( 'submits the form upon pressing the CTA', async () => {
-		registry.dispatch( MODULES_ANALYTICS_4 ).setSettings( {
-			adsConversionID: '',
-		} );
 		registry.dispatch( MODULES_TAGMANAGER ).setSettings( {} );
 		registry
 			.dispatch( MODULES_ANALYTICS_4 )
diff --git a/assets/js/modules/analytics-4/components/setup/__snapshots__/SetupForm.test.js.snap b/assets/js/modules/analytics-4/components/setup/__snapshots__/SetupForm.test.js.snap
index 0f34bbbd415..744c58566ee 100644
--- a/assets/js/modules/analytics-4/components/setup/__snapshots__/SetupForm.test.js.snap
+++ b/assets/js/modules/analytics-4/components/setup/__snapshots__/SetupForm.test.js.snap
@@ -207,7 +207,6 @@ exports[`SetupForm renders the form correctly 1`] = `
     >
       <button
         class="mdc-button googlesitekit-button-icon--spinner googlesitekit-button-icon--spinner__after mdc-button--raised"
-        disabled=""
         target="_self"
       >
         <span
@@ -480,7 +479,6 @@ exports[`SetupForm renders the form correctly with setupFlowRefresh enabled 1`]
     >
       <button
         class="mdc-button googlesitekit-button-icon--spinner googlesitekit-button-icon--spinner__after mdc-button--raised"
-        disabled=""
         target="_self"
       >
         <span
diff --git a/assets/js/modules/analytics-4/datastore/base.js b/assets/js/modules/analytics-4/datastore/base.js
index 90f26c889e7..79244f86446 100644
--- a/assets/js/modules/analytics-4/datastore/base.js
+++ b/assets/js/modules/analytics-4/datastore/base.js
@@ -43,7 +43,6 @@ const baseModuleStore = Modules.createModuleStore( MODULE_SLUG_ANALYTICS_4, {
 	storeName: MODULES_ANALYTICS_4,
 	settingSlugs: [
 		'accountID',
-		'adsConversionID',
 		'adSenseLinked',
 		'adSenseLinkedLastSyncedAt',
 		'propertyID',
@@ -59,7 +58,6 @@ const baseModuleStore = Modules.createModuleStore( MODULE_SLUG_ANALYTICS_4, {
 		'availableCustomDimensions',
 		'propertyCreateTime',
 		'trackingDisabled',
-		'adsConversionIDMigratedAtMs',
 		'adsLinked',
 		'adsLinkedLastSyncedAt',
 		'detectedEvents',
diff --git a/assets/js/modules/analytics-4/datastore/settings.js b/assets/js/modules/analytics-4/datastore/settings.js
index 1e750471c2a..35fc812ffcf 100644
--- a/assets/js/modules/analytics-4/datastore/settings.js
+++ b/assets/js/modules/analytics-4/datastore/settings.js
@@ -51,7 +51,6 @@ import {
 	WEBDATASTREAM_CREATE,
 } from './constants';
 import { MODULE_SLUG_ANALYTICS_4 } from '@/js/modules/analytics-4/constants';
-import { isValidConversionID } from '@/js/modules/ads/utils/validation';
 import { CORE_SITE } from '@/js/googlesitekit/datastore/site/constants';
 import { CORE_NOTIFICATIONS } from '@/js/googlesitekit/notifications/datastore/constants';
 import { GTG_SETUP_CTA_BANNER_NOTIFICATION } from '@/js/googlesitekit/notifications/constants';
@@ -65,8 +64,6 @@ export const INVARIANT_INVALID_WEBDATASTREAM_NAME =
 	'a valid web data stream name is required to submit changes';
 export const INVARIANT_WEBDATASTREAM_ALREADY_EXISTS =
 	'a web data stream with the same name already exists';
-export const INVARIANT_INVALID_ADS_CONVERSION_ID =
-	'a valid ads adsConversionID is required to submit changes';
 
 const store = {
 	selectors: {
@@ -292,7 +289,6 @@ export function validateCanSubmitChanges( select ) {
 		getPropertyID,
 		getWebDataStreamID,
 		doesWebDataStreamExist,
-		getAdsConversionID,
 	} = createStrictSelect( select )( MODULES_ANALYTICS_4 );
 
 	invariant( haveAnyGA4SettingsChanged(), INVARIANT_SETTINGS_NOT_CHANGED );
@@ -332,15 +328,6 @@ export function validateCanSubmitChanges( select ) {
 			);
 		}
 	}
-
-	const adsConversionID = getAdsConversionID();
-
-	if ( adsConversionID !== '' ) {
-		invariant(
-			isValidConversionID( adsConversionID ),
-			INVARIANT_INVALID_ADS_CONVERSION_ID
-		);
-	}
 }
 
 export function validateHaveSettingsChanged( select, state, keys ) {
diff --git a/assets/js/modules/analytics-4/datastore/settings.test.js b/assets/js/modules/analytics-4/datastore/settings.test.js
index 16df0fda615..a3a40029285 100644
--- a/assets/js/modules/analytics-4/datastore/settings.test.js
+++ b/assets/js/modules/analytics-4/datastore/settings.test.js
@@ -1058,7 +1058,6 @@ describe( 'modules/analytics-4 settings', () => {
 				it( 'accepts a change to analytics-4 settings as a valid change', () => {
 					registry.dispatch( MODULES_ANALYTICS_4 ).setSettings( {
 						propertyID: '1001',
-						adsConversionID: '',
 					} );
 
 					expect(
@@ -1073,33 +1072,6 @@ describe( 'modules/analytics-4 settings', () => {
 							.__dangerousCanSubmitChanges()
 					).not.toThrow();
 				} );
-
-				it( 'accepts a change to enhanced measurement settings as a valid change', () => {
-					registry.dispatch( MODULES_ANALYTICS_4 ).setSettings( {
-						adsConversionID: '',
-					} );
-					registry
-						.dispatch( MODULES_ANALYTICS_4 )
-						.setEnhancedMeasurementSettings(
-							propertyID,
-							webDataStreamID,
-							{
-								streamEnabled: false,
-							}
-						);
-
-					expect(
-						registry
-							.select( MODULES_ANALYTICS_4 )
-							.canSubmitChanges()
-					).toBe( true );
-
-					expect( () =>
-						registry
-							.select( MODULES_ANALYTICS_4 )
-							.__dangerousCanSubmitChanges()
-					).not.toThrow();
-				} );
 			} );
 
 			it( 'should require a valid propertyID', () => {
diff --git a/includes/Core/Util/Migration_n_e_x_t.php b/includes/Core/Util/Migration_n_e_x_t.php
new file mode 100644
index 00000000000..591e81a2303
--- /dev/null
+++ b/includes/Core/Util/Migration_n_e_x_t.php
@@ -0,0 +1,133 @@
+<?php
+/**
+ * Migration for Analytics Ads Conversion ID.
+ *
+ * @package   Google\Site_Kit\Core\Util
+ * @copyright 2026 Google LLC
+ * @license   https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
+ * @link      https://sitekit.withgoogle.com
+ */
+
+namespace Google\Site_Kit\Core\Util;
+
+use Google\Site_Kit\Context;
+use Google\Site_Kit\Core\Storage\Options;
+use Google\Site_Kit\Modules\Analytics_4\Settings as Analytics_Settings;
+
+/**
+ * Class Migration_n_e_x_t
+ *
+ * @since n.e.x.t
+ * @access private
+ * @ignore
+ */
+class Migration_N_E_X_T {
+	/**
+	 * Target DB version.
+	 */
+	const DB_VERSION = 'n.e.x.t';
+
+	/**
+	 * DB version option name.
+	 */
+	const DB_VERSION_OPTION = 'googlesitekit_db_version';
+
+	/**
+	 * Context instance.
+	 *
+	 * @since n.e.x.t
+	 * @var Context
+	 */
+	protected $context;
+
+	/**
+	 * Options instance.
+	 *
+	 * @since n.e.x.t
+	 * @var Options
+	 */
+	protected $options;
+
+	/**
+	 * Analytics_Settings instance.
+	 *
+	 * @since n.e.x.t
+	 * @var Analytics_Settings
+	 */
+	protected $analytics_settings;
+
+	/**
+	 * Constructor.
+	 *
+	 * @since n.e.x.t
+	 *
+	 * @param Context $context Plugin context instance.
+	 * @param Options $options Optional. Options instance.
+	 */
+	public function __construct(
+		Context $context,
+		?Options $options = null
+	) {
+		$this->context            = $context;
+		$this->options            = $options ?: new Options( $context );
+		$this->analytics_settings = new Analytics_Settings( $this->options );
+	}
+
+	/**
+	 * Registers hooks.
+	 *
+	 * @since n.e.x.t
+	 */
+	public function register() {
+		add_action( 'admin_init', array( $this, 'migrate' ) );
+	}
+
+	/**
+	 * Migrates the DB.
+	 *
+	 * @since n.e.x.t
+	 */
+	public function migrate() {
+		$db_version = $this->options->get( self::DB_VERSION_OPTION );
+
+		if ( ! $db_version || version_compare( $db_version, self::DB_VERSION, '<' ) ) {
+			$this->migrate_remove_analytics_conversion_id_setting();
+
+			$this->options->set( self::DB_VERSION_OPTION, self::DB_VERSION );
+		}
+	}
+
+	/**
+	 * Removes the `adsConversionIDMigratedAtMs` setting that is no longer used,
+	 * if present.
+	 *
+	 * @since n.e.x.t
+	 */
+	protected function migrate_remove_analytics_conversion_id_setting() {
+		if ( ! $this->analytics_settings->has() ) {
+			return;
+		}
+
+		$analytics_settings = $this->analytics_settings->get();
+
+		if ( ! is_array( $analytics_settings ) || empty( $analytics_settings ) ) {
+			return;
+		}
+
+		// If the `adsConversionIDMigratedAtMs` setting does not exist,
+		// there is nothing to remove and we can return early.
+		if (
+			! array_key_exists(
+				'adsConversionIDMigratedAtMs',
+				$analytics_settings
+			)
+		) {
+			return;
+		}
+
+		unset( $analytics_settings['adsConversionIDMigratedAtMs'] );
+
+		// Save the updated settings.
+		$this->analytics_settings->set( $analytics_settings );
+	}
+}
diff --git a/includes/Modules/Analytics_4/Settings.php b/includes/Modules/Analytics_4/Settings.php
index 38aef26f165..f2bd5698aea 100644
--- a/includes/Modules/Analytics_4/Settings.php
+++ b/includes/Modules/Analytics_4/Settings.php
@@ -105,7 +105,6 @@ protected function get_default() {
 			'propertyCreateTime'               => 0,
 			'adSenseLinked'                    => false,
 			'adSenseLinkedLastSyncedAt'        => 0,
-			'adsConversionIDMigratedAtMs'      => 0,
 			'adsLinked'                        => false,
 			'adsLinkedLastSyncedAt'            => 0,
 			'detectedEvents'                   => array(),
@@ -181,12 +180,6 @@ function ( $dimension ) {
 					}
 				}
 
-				if ( isset( $option['adsConversionIDMigratedAtMs'] ) ) {
-					if ( ! is_int( $option['adsConversionIDMigratedAtMs'] ) ) {
-						$option['adsConversionIDMigratedAtMs'] = 0;
-					}
-				}
-
 				if ( isset( $option['adsLinked'] ) ) {
 					$option['adsLinked'] = (bool) $option['adsLinked'];
 				}
diff --git a/tests/phpunit/integration/Core/Util/Migration_n_e_x_tTest.php b/tests/phpunit/integration/Core/Util/Migration_n_e_x_tTest.php
new file mode 100644
index 00000000000..a99ca6803c6
--- /dev/null
+++ b/tests/phpunit/integration/Core/Util/Migration_n_e_x_tTest.php
@@ -0,0 +1,117 @@
+<?php
+/**
+ * \Google\Site_Kit\Tests\Core\Util\Migration_n_e_x_tTest
+ *
+ * @package   Google\Site_Kit\Tests\Core\Util
+ * @copyright 2026 Google LLC
+ * @license   https://www.apache.org/licenses/LICENSE-2.0 Apache License 2.0
+ * @link      https://sitekit.withgoogle.com
+ */
+
+namespace Google\Site_Kit\Tests\Core\Util;
+
+use Google\Site_Kit\Context;
+use Google\Site_Kit\Core\Storage\Options;
+use Google\Site_Kit\Core\Util\Migration_N_E_X_T;
+use Google\Site_Kit\Modules\Analytics_4\Settings as Analytics_Settings;
+use Google\Site_Kit\Tests\TestCase;
+
+class Migration_N_E_X_TTest extends TestCase {
+
+	/**
+	 * @var Context
+	 */
+	protected $context;
+
+	/**
+	 * @var Options
+	 */
+	protected $options;
+
+	/**
+	 * @var Analytics_Settings
+	 */
+	protected $analytics_settings;
+
+	public function set_up() {
+		parent::set_up();
+
+		$this->context            = new Context( GOOGLESITEKIT_PLUGIN_MAIN_FILE );
+		$this->options            = new Options( $this->context );
+		$this->analytics_settings = new Analytics_Settings( $this->options );
+
+		$this->analytics_settings->register();
+		$this->delete_db_version();
+	}
+
+	public function get_new_migration_instance() {
+		return new Migration_n_e_x_t(
+			$this->context,
+			$this->options
+		);
+	}
+
+	public function test_register() {
+		$migration = $this->get_new_migration_instance();
+		remove_all_actions( 'admin_init' );
+
+		$migration->register();
+
+		$this->assertTrue( has_action( 'admin_init' ), 'Migration should register admin_init action.' );
+	}
+
+	public function test_migrate_when_setting_present() {
+		$migration = $this->get_new_migration_instance();
+
+		$analytics_data = array(
+			'availableAudiences'                   => array( 'audience1', 'audience2' ),
+			'availableAudiencesLastSyncedAt'       => 1678886400,
+			'audienceSegmentationSetupCompletedBy' => 123,
+			'adsConversionIDMigratedAtMs'          => 1678886400,
+			'other_analytics_setting'              => 'value',
+		);
+
+		$this->analytics_settings->set( $analytics_data );
+
+		$pre_migration_settings = $this->analytics_settings->get();
+
+		$this->assertArrayHasKey( 'adsConversionIDMigratedAtMs', $pre_migration_settings, 'adsConversionIDMigratedAtMs setting should exist in Analytics settings before migration.' );
+
+		$migration->migrate();
+
+		$post_migration_settings = $this->analytics_settings->get();
+
+		$this->assertArrayNotHasKey( 'adsConversionIDMigratedAtMs', $post_migration_settings, 'adsConversionIDMigratedAtMs setting should be removed from Analytics settings.' );
+	}
+
+	public function test_migrate_when_setting_not_present() {
+		$migration = $this->get_new_migration_instance();
+
+		$analytics_data = array(
+			'availableAudiences'                   => array( 'audience1', 'audience2' ),
+			'availableAudiencesLastSyncedAt'       => 1678886400,
+			'audienceSegmentationSetupCompletedBy' => 123,
+			'other_analytics_setting'              => 'value',
+		);
+
+		$this->analytics_settings->set( $analytics_data );
+
+		$pre_migration_settings = $this->analytics_settings->get();
+
+		$this->assertArrayNotHasKey( 'adsConversionIDMigratedAtMs', $pre_migration_settings, 'adsConversionIDMigratedAtMs setting should not exist in Analytics settings before migration.' );
+
+		$migration->migrate();
+
+		$post_migration_settings = $this->analytics_settings->get();
+
+		$this->assertArrayNotHasKey( 'adsConversionIDMigratedAtMs', $post_migration_settings, 'adsConversionIDMigratedAtMs setting should not be present in Analytics settings after migration.' );
+	}
+
+	protected function get_db_version() {
+		return $this->options->get( Migration_n_e_x_t::DB_VERSION_OPTION );
+	}
+
+	protected function delete_db_version() {
+		$this->options->delete( Migration_n_e_x_t::DB_VERSION_OPTION );
+	}
+}
diff --git a/tests/phpunit/integration/Modules/Analytics_4/SettingsTest.php b/tests/phpunit/integration/Modules/Analytics_4/SettingsTest.php
index e422f0db9e6..d885a530ff1 100644
--- a/tests/phpunit/integration/Modules/Analytics_4/SettingsTest.php
+++ b/tests/phpunit/integration/Modules/Analytics_4/SettingsTest.php
@@ -81,7 +81,6 @@ public function test_get_default() {
 				'propertyCreateTime'               => 0,
 				'adSenseLinked'                    => false,
 				'adSenseLinkedLastSyncedAt'        => 0,
-				'adsConversionIDMigratedAtMs'      => 0,
 				'adsLinked'                        => false,
 				'adsLinkedLastSyncedAt'            => 0,
 				'detectedEvents'                   => array(),
diff --git a/tests/phpunit/integration/Modules/Analytics_4Test.php b/tests/phpunit/integration/Modules/Analytics_4Test.php
index 9c3c4000eea..cfc8fc84bfe 100644
--- a/tests/phpunit/integration/Modules/Analytics_4Test.php
+++ b/tests/phpunit/integration/Modules/Analytics_4Test.php
@@ -663,7 +663,6 @@ function ( Request $request ) use ( $property_id, $webdatastream_id, $measuremen
 				'propertyCreateTime'               => 0,
 				'adSenseLinked'                    => false,
 				'adSenseLinkedLastSyncedAt'        => 0,
-				'adsConversionIDMigratedAtMs'      => 0,
 				'adsLinked'                        => false,
 				'adsLinkedLastSyncedAt'            => 0,
 				'detectedEvents'                   => array(),
@@ -697,7 +696,6 @@ function ( Request $request ) use ( $property_id, $webdatastream_id, $measuremen
 				'propertyCreateTime'               => 0,
 				'adSenseLinked'                    => false,
 				'adSenseLinkedLastSyncedAt'        => 0,
-				'adsConversionIDMigratedAtMs'      => 0,
 				'adsLinked'                        => false,
 				'adsLinkedLastSyncedAt'            => 0,
 				'detectedEvents'                   => array(),
@@ -830,7 +828,6 @@ function ( Request $request ) use ( $property_id, $webdatastream_id, $measuremen
 				'propertyCreateTime'               => 0,
 				'adSenseLinked'                    => false,
 				'adSenseLinkedLastSyncedAt'        => 0,
-				'adsConversionIDMigratedAtMs'      => 0,
 				'adsLinked'                        => false,
 				'adsLinkedLastSyncedAt'            => 0,
 				'detectedEvents'                   => array(),
@@ -965,7 +962,6 @@ function ( Request $request ) use ( $property_id, $webdatastream_id, $measuremen
 				'propertyCreateTime'               => 0,
 				'adSenseLinked'                    => false,
 				'adSenseLinkedLastSyncedAt'        => 0,
-				'adsConversionIDMigratedAtMs'      => 0,
 				'adsLinked'                        => false,
 				'adsLinkedLastSyncedAt'            => 0,
 				'detectedEvents'                   => array(),
@@ -1002,7 +998,6 @@ function ( Request $request ) use ( $property_id, $webdatastream_id, $measuremen
 				'propertyCreateTime'               => Synchronize_Property::convert_time_to_unix_ms( '2022-09-09T09:18:05.968Z' ),
 				'adSenseLinked'                    => false,
 				'adSenseLinkedLastSyncedAt'        => 0,
-				'adsConversionIDMigratedAtMs'      => 0,
 				'adsLinked'                        => false,
 				'adsLinkedLastSyncedAt'            => 0,
 				'detectedEvents'                   => array(),