diff --git a/swift-sdk/Internal/AuthManager.swift b/swift-sdk/Internal/AuthManager.swift
index 94b22abe3..8a3dadf53 100644
--- a/swift-sdk/Internal/AuthManager.swift
+++ b/swift-sdk/Internal/AuthManager.swift
@@ -53,6 +53,12 @@ class AuthManager: IterableAuthManagerProtocol {
         }
     }
     
+    func setNewToken(_ newToken: String) {
+        ITBInfo()
+        
+        onAuthTokenReceived(retrievedAuthToken: newToken)
+    }
+    
     func logoutUser() {
         ITBInfo()
         
@@ -86,7 +92,7 @@ class AuthManager: IterableAuthManagerProtocol {
         queueAuthTokenExpirationRefresh(authToken)
     }
     
-    private func onAuthTokenReceived(retrievedAuthToken: String?, onSuccess: AuthTokenRetrievalHandler?) {
+    private func onAuthTokenReceived(retrievedAuthToken: String?, onSuccess: AuthTokenRetrievalHandler? = nil) {
         pendingAuth = false
         
         authToken = retrievedAuthToken
diff --git a/swift-sdk/Internal/InternalIterableAPI.swift b/swift-sdk/Internal/InternalIterableAPI.swift
index e7be40904..3ed5d4261 100644
--- a/swift-sdk/Internal/InternalIterableAPI.swift
+++ b/swift-sdk/Internal/InternalIterableAPI.swift
@@ -95,7 +95,7 @@ final class InternalIterableAPI: NSObject, PushTrackerProtocol, AuthProvider {
         deviceAttributes.removeValue(forKey: name)
     }
     
-    func setEmail(_ email: String?) {
+    func setEmail(_ email: String?, authToken: String? = nil) {
         ITBInfo()
         
         if _email == email {
@@ -109,10 +109,10 @@ final class InternalIterableAPI: NSObject, PushTrackerProtocol, AuthProvider {
         
         storeIdentifierData()
         
-        onLogin()
+        onLogin(authToken)
     }
     
-    func setUserId(_ userId: String?) {
+    func setUserId(_ userId: String?, authToken: String? = nil) {
         ITBInfo()
         
         if _userId == userId {
@@ -126,7 +126,7 @@ final class InternalIterableAPI: NSObject, PushTrackerProtocol, AuthProvider {
         
         storeIdentifierData()
         
-        onLogin()
+        onLogin(authToken)
     }
     
     func logoutUser() {
@@ -200,10 +200,13 @@ final class InternalIterableAPI: NSObject, PushTrackerProtocol, AuthProvider {
                      withToken token: String? = nil,
                      onSuccess: OnSuccessHandler? = nil,
                      onFailure: OnFailureHandler? = nil) -> Pending<SendRequestValue, SendRequestError> {
-        requestHandler.updateEmail(newEmail, onSuccess: nil, onFailure: nil).onSuccess { json in
+        requestHandler.updateEmail(newEmail,
+                                   onSuccess: nil,
+                                   onFailure: nil).onSuccess { json in
             if self.email != nil {
-                self.setEmail(newEmail)
+                self.setEmail(newEmail, authToken: token)
             }
+            
             onSuccess?(json)
         }.onError { error in
             onFailure?(error.reason, error.data)
@@ -475,10 +478,13 @@ final class InternalIterableAPI: NSObject, PushTrackerProtocol, AuthProvider {
         localStorage.userId = _userId
     }
     
-    private func onLogin() {
+    private func onLogin(_ authToken: String? = nil) {
         ITBInfo()
         
-        if isEitherUserIdOrEmailSet() && config.authDelegate != nil {
+        if let authToken = authToken {
+            self.authManager.setNewToken(authToken)
+            completeUserLogin()
+        } else if isEitherUserIdOrEmailSet() && config.authDelegate != nil {
             requestNewAuthToken()
         } else {
             completeUserLogin()
diff --git a/swift-sdk/IterableAPI.swift b/swift-sdk/IterableAPI.swift
index 7d955b952..5d7e317df 100644
--- a/swift-sdk/IterableAPI.swift
+++ b/swift-sdk/IterableAPI.swift
@@ -309,7 +309,7 @@ public final class IterableAPI: NSObject {
     ///
     /// - Parameters:
     ///    - newEmail: The new email of this user
-    ///    - token: The new authentication token for this user
+    ///    - token: The new authentication token for this user, if left out, the SDK will not update the token in any way
     ///    - onSuccess: `OnSuccessHandler` to invoke if update is successful
     ///    - onFailure: `OnFailureHandler` to invoke if update fails
     ///
@@ -321,7 +321,7 @@ public final class IterableAPI: NSObject {
                                    withToken token: String,
                                    onSuccess: OnSuccessHandler?,
                                    onFailure: OnFailureHandler?) {
-        internalImplementation?.updateEmail(newEmail, onSuccess: onSuccess, onFailure: onFailure)
+        internalImplementation?.updateEmail(newEmail, withToken: token, onSuccess: onSuccess, onFailure: onFailure)
     }
     
     /// Tracks what's in the shopping cart (or equivalent) at this point in time
diff --git a/swift-sdk/IterableAuthManagerProtocol.swift b/swift-sdk/IterableAuthManagerProtocol.swift
index 800723733..7b3eeb5ba 100644
--- a/swift-sdk/IterableAuthManagerProtocol.swift
+++ b/swift-sdk/IterableAuthManagerProtocol.swift
@@ -8,5 +8,6 @@ import Foundation
     func getAuthToken() -> String?
     func resetFailedAuthCount()
     func requestNewAuthToken(hasFailedPriorAuth: Bool, onSuccess: ((String?) -> Void)?)
+    func setNewToken(_ newToken: String)
     func logoutUser()
 }
diff --git a/tests/unit-tests/AuthTests.swift b/tests/unit-tests/AuthTests.swift
index baef1c521..3a3849ee4 100644
--- a/tests/unit-tests/AuthTests.swift
+++ b/tests/unit-tests/AuthTests.swift
@@ -90,7 +90,7 @@ class AuthTests: XCTestCase {
         XCTAssertNil(internalAPI.auth.authToken)
     }
     
-    func testNewEmailWithTokenChange() {
+    func testNewEmailAndThenChangeToken() {
         var internalAPI: InternalIterableAPI?
         
         let originalEmail = "first@example.com"
@@ -128,7 +128,7 @@ class AuthTests: XCTestCase {
         XCTAssertEqual(API.auth.authToken, newToken)
     }
     
-    func testNewUserIdWithTokenChange() {
+    func testNewUserIdAndThenChangeToken() {
         var internalAPI: InternalIterableAPI?
         
         let originalUserId = "firstUserId"
@@ -166,8 +166,8 @@ class AuthTests: XCTestCase {
         XCTAssertEqual(API.auth.authToken, newToken)
     }
     
-    func testUpdateEmailWithToken() {
-        let condition1 = expectation(description: "update email with auth token")
+    func testUpdateEmailAndThenChangeToken() {
+        let condition1 = expectation(description: "update email and then change auth token")
         
         var internalAPI: InternalIterableAPI?
         
@@ -211,6 +211,50 @@ class AuthTests: XCTestCase {
         wait(for: [condition1], timeout: testExpectationTimeout)
     }
     
+    func testUpdateEmailWithTokenParam() {
+        let condition1 = expectation(description: #function)
+        
+        var internalAPI: InternalIterableAPI?
+        
+        let originalEmail = "rtbo"
+        let originalToken = "hngk"
+        
+        let updatedEmail = "2"
+        let updatedToken = "564g"
+        
+        let authDelegate = DefaultAuthDelegate {
+            return originalToken
+        }
+        
+        let config = IterableConfig()
+        config.authDelegate = authDelegate
+        
+        internalAPI = InternalIterableAPI.initializeForTesting(config: config)
+        
+        guard let API = internalAPI else {
+            XCTFail()
+            return
+        }
+        
+        API.setEmail(originalEmail)
+        
+        XCTAssertEqual(API.email, originalEmail)
+        XCTAssertNil(API.userId)
+        XCTAssertEqual(API.auth.authToken, originalToken)
+        
+        API.updateEmail(updatedEmail, withToken: updatedToken) { data in
+            XCTAssertEqual(API.email, updatedEmail)
+            XCTAssertNil(API.userId)
+            XCTAssertEqual(API.auth.authToken, updatedToken)
+            
+            condition1.fulfill()
+        } onFailure: { reason, data in
+            XCTFail()
+        }
+        
+        wait(for: [condition1], timeout: testExpectationTimeout)
+    }
+    
     func testLogoutUser() {
         let authDelegate = createStockAuthDelegate()