diff --git a/android/src/main/java/com/oktareactnative/OktaSdkBridgeModule.java b/android/src/main/java/com/oktareactnative/OktaSdkBridgeModule.java
index f02c97aa..e089326d 100644
--- a/android/src/main/java/com/oktareactnative/OktaSdkBridgeModule.java
+++ b/android/src/main/java/com/oktareactnative/OktaSdkBridgeModule.java
@@ -58,6 +58,7 @@
 
 import java.io.PrintWriter;
 import java.io.StringWriter;
+import java.util.Optional;
 
 public class OktaSdkBridgeModule extends ReactContextBaseJavaModule implements ActivityEventListener {
 
@@ -101,7 +102,8 @@ public void createConfig(String clientId,
             ReadableMap timeouts,
             Boolean browserMatchAll,
             Callback successCallback,
-            Callback errorCallback
+            Callback errorCallback,
+            Optional<String> issuer
     ) {
 
         try {
@@ -119,7 +121,7 @@ public void createConfig(String clientId,
                     .redirectUri(redirectUri)
                     .endSessionRedirectUri(endSessionRedirectUri)
                     .scopes(scopeArray)
-                    .discoveryUri(discoveryUri)
+                    .discoveryUri((issuer.isPresent()) ? issuer.get() : discoveryUri)
                     .create();
 
             Okta.WebAuthBuilder webAuthBuilder = new Okta.WebAuthBuilder();
diff --git a/index.js b/index.js
index ca2dc33e..6b9d966e 100644
--- a/index.js
+++ b/index.js
@@ -124,12 +124,18 @@ export function createConfigWithCallbacks(
   onSuccess,
   onError
 ) {
-  assertIssuer(discoveryUri);
   assertClientId(clientId);
   assertRedirectUri(redirectUri);
   assertRedirectUri(endSessionRedirectUri);
 
+  if (issuer) {
+    assertIssuer(issuer);
+  }
+
   const { origin } = new Url(discoveryUri);
+  if (!issuer && discoveryUri) {
+    assertIssuer(origin);
+  }
 
   oktaAuthConfig = {
     ...oktaAuthConfig,
@@ -168,7 +174,8 @@ export function createConfigWithCallbacks(
       userAgentTemplate,
       httpConnectionTimeout,
       onSuccess,
-      onError
+      onError,
+      issuer
     );
   } else {
 
@@ -189,7 +196,8 @@ export function createConfigWithCallbacks(
       timeouts,
       browserMatchAll,
       onSuccess,
-      onError
+      onError,
+      issuer
     );
   }
 }
diff --git a/ios/OktaSdkBridge/OktaSdkBridge.swift b/ios/OktaSdkBridge/OktaSdkBridge.swift
index 909aa8b2..b0491c64 100644
--- a/ios/OktaSdkBridge/OktaSdkBridge.swift
+++ b/ios/OktaSdkBridge/OktaSdkBridge.swift
@@ -88,13 +88,14 @@ class OktaSdkBridge: RCTEventEmitter {
                       userAgentTemplate: String,
                       requestTimeout: Int,
                       successCallback: RCTResponseSenderBlock,
-                      errorCallback: RCTResponseSenderBlock) {
+                      errorCallback: RCTResponseSenderBlock,
+                      issuer: String?) {
         do {
             let uaVersion = OktaUserAgent.userAgentVersion()
             let userAgent = userAgentTemplate.replacingOccurrences(of: "$UPSTREAM_SDK", with: "okta-oidc-ios/\(uaVersion)")
             OktaOidcConfig.setUserAgent(value: userAgent)
             let config = try OktaOidcConfig(with: [
-                "issuer": discoveryUri,
+                "issuer": issuer ?? discoveryUri,
                 "clientId": clientId,
                 "redirectUri": redirectUrl,
                 "logoutRedirectUri": endSessionRedirectUri,