diff --git a/purchases/src/main/kotlin/com/revenuecat/purchases/common/Backend.kt b/purchases/src/main/kotlin/com/revenuecat/purchases/common/Backend.kt
index 7ed8fb4387..2f06bf9873 100644
--- a/purchases/src/main/kotlin/com/revenuecat/purchases/common/Backend.kt
+++ b/purchases/src/main/kotlin/com/revenuecat/purchases/common/Backend.kt
@@ -667,9 +667,9 @@ internal class Backend(
         onSuccessHandler: (CustomerInfo) -> Unit,
         onErrorHandler: (PurchasesError) -> Unit,
     ) {
-        val endpoint = Endpoint.PostRedeemWebPurchase(appUserID)
+        val endpoint = Endpoint.PostRedeemWebPurchase
         val path = endpoint.getPath()
-        val body = mapOf("redemption_token" to redemptionToken)
+        val body = mapOf("redemption_token" to redemptionToken, APP_USER_ID to appUserID)
         val call = object : Dispatcher.AsyncCall() {
             override fun call(): HTTPResult {
                 return httpClient.performRequest(
diff --git a/purchases/src/main/kotlin/com/revenuecat/purchases/common/networking/Endpoint.kt b/purchases/src/main/kotlin/com/revenuecat/purchases/common/networking/Endpoint.kt
index 8dedc0ace1..69106e9c95 100644
--- a/purchases/src/main/kotlin/com/revenuecat/purchases/common/networking/Endpoint.kt
+++ b/purchases/src/main/kotlin/com/revenuecat/purchases/common/networking/Endpoint.kt
@@ -40,11 +40,11 @@ internal sealed class Endpoint(val pathTemplate: String, val name: String) {
     ) {
         override fun getPath() = pathTemplate.format(Uri.encode(userId))
     }
-    data class PostRedeemWebPurchase(val userId: String) : Endpoint(
-        "/subscribers/%s/redeem_web_purchase",
+    object PostRedeemWebPurchase : Endpoint(
+        "/subscribers/redeem_purchase",
         "post_redeem_web_purchase",
     ) {
-        override fun getPath() = pathTemplate.format(Uri.encode(userId))
+        override fun getPath() = pathTemplate
     }
 
     val supportsSignatureVerification: Boolean
@@ -54,7 +54,7 @@ internal sealed class Endpoint(val pathTemplate: String, val name: String) {
             PostReceipt,
             is GetOfferings,
             GetProductEntitlementMapping,
-            is PostRedeemWebPurchase,
+            PostRedeemWebPurchase,
             ->
                 true
             is GetAmazonReceipt,
@@ -71,7 +71,7 @@ internal sealed class Endpoint(val pathTemplate: String, val name: String) {
             is GetCustomerInfo,
             LogIn,
             PostReceipt,
-            is PostRedeemWebPurchase,
+            PostRedeemWebPurchase,
             ->
                 true
             is GetAmazonReceipt,
diff --git a/purchases/src/test/java/com/revenuecat/purchases/common/backend/BackendRedeemWebPurchaseTest.kt b/purchases/src/test/java/com/revenuecat/purchases/common/backend/BackendRedeemWebPurchaseTest.kt
index fd0ed1f101..40b36df36c 100644
--- a/purchases/src/test/java/com/revenuecat/purchases/common/backend/BackendRedeemWebPurchaseTest.kt
+++ b/purchases/src/test/java/com/revenuecat/purchases/common/backend/BackendRedeemWebPurchaseTest.kt
@@ -15,11 +15,6 @@ import com.revenuecat.purchases.common.createCustomerInfo
 import com.revenuecat.purchases.common.networking.Endpoint
 import com.revenuecat.purchases.common.networking.HTTPResult
 import com.revenuecat.purchases.common.networking.RCHTTPStatusCodes
-import com.revenuecat.purchases.customercenter.CustomerCenterConfigData
-import com.revenuecat.purchases.customercenter.CustomerCenterConfigData.HelpPath
-import com.revenuecat.purchases.customercenter.CustomerCenterConfigData.Screen
-import com.revenuecat.purchases.customercenter.CustomerCenterConfigData.Screen.ScreenType
-import com.revenuecat.purchases.customercenter.RCColor
 import com.revenuecat.purchases.utils.Responses
 import io.mockk.every
 import io.mockk.mockk
@@ -29,7 +24,6 @@ import org.junit.Assert.fail
 import org.junit.Before
 import org.junit.Test
 import org.junit.runner.RunWith
-import java.io.File
 import java.net.URL
 import java.util.concurrent.CountDownLatch
 import java.util.concurrent.LinkedBlockingQueue
@@ -37,7 +31,6 @@ import java.util.concurrent.ThreadPoolExecutor
 import java.util.concurrent.TimeUnit
 import kotlin.time.Duration.Companion.seconds
 
-@OptIn(ExperimentalPreviewRevenueCatPurchasesAPI::class)
 @RunWith(AndroidJUnit4::class)
 class BackendRedeemWebPurchaseTest {
 
@@ -136,8 +129,8 @@ class BackendRedeemWebPurchaseTest {
         verify(exactly = 1) {
             httpClient.performRequest(
                 mockBaseURL,
-                Endpoint.PostRedeemWebPurchase("test-user-id"),
-                body = mapOf("redemption_token" to "test-redemption-token"),
+                Endpoint.PostRedeemWebPurchase,
+                body = mapOf("redemption_token" to "test-redemption-token", "app_user_id" to "test-user-id"),
                 postFieldsToSign = null,
                 any()
             )
diff --git a/purchases/src/test/java/com/revenuecat/purchases/common/networking/EndpointTest.kt b/purchases/src/test/java/com/revenuecat/purchases/common/networking/EndpointTest.kt
index 4e4cf702b2..f115440475 100644
--- a/purchases/src/test/java/com/revenuecat/purchases/common/networking/EndpointTest.kt
+++ b/purchases/src/test/java/com/revenuecat/purchases/common/networking/EndpointTest.kt
@@ -20,7 +20,7 @@ class EndpointTest {
         Endpoint.PostAttributes("test-user-id"),
         Endpoint.PostDiagnostics,
         Endpoint.PostPaywallEvents,
-        Endpoint.PostRedeemWebPurchase("test-user-id"),
+        Endpoint.PostRedeemWebPurchase,
     )
 
     @Test
@@ -88,8 +88,8 @@ class EndpointTest {
 
     @Test
     fun `PostRedeemWebPurchase has correct path`() {
-        val endpoint = Endpoint.PostRedeemWebPurchase("test user-id")
-        val expectedPath = "/subscribers/test%20user-id/redeem_web_purchase"
+        val endpoint = Endpoint.PostRedeemWebPurchase
+        val expectedPath = "/subscribers/redeem_purchase"
         assertThat(endpoint.getPath()).isEqualTo(expectedPath)
     }
 
@@ -101,7 +101,7 @@ class EndpointTest {
             Endpoint.PostReceipt,
             Endpoint.GetOfferings("test-user-id"),
             Endpoint.GetProductEntitlementMapping,
-            Endpoint.PostRedeemWebPurchase("test-user-id"),
+            Endpoint.PostRedeemWebPurchase,
         )
         for (endpoint in expectedSupportsValidationEndpoints) {
             assertThat(endpoint.supportsSignatureVerification)
@@ -142,7 +142,7 @@ class EndpointTest {
             Endpoint.GetCustomerInfo("test-user-id"),
             Endpoint.LogIn,
             Endpoint.PostReceipt,
-            Endpoint.PostRedeemWebPurchase("test-user-id"),
+            Endpoint.PostRedeemWebPurchase,
         )
         for (endpoint in expectedEndpoints) {
             assertThat(endpoint.needsNonceToPerformSigning)