diff --git a/packages/react/src/contexts/FlowHandlerContext.ts b/packages/react/src/contexts/FlowHandlerContext.ts
index 75201599..664fee8d 100644
--- a/packages/react/src/contexts/FlowHandlerContext.ts
+++ b/packages/react/src/contexts/FlowHandlerContext.ts
@@ -6,8 +6,7 @@ import type {
   UserState,
   VerificationMethods,
 } from '@corbado/shared-ui';
-import { ScreenNames } from '@corbado/shared-ui';
-import type { ProjectConfig } from '@corbado/types';
+import { ScreenNames } from '@corbado/shared-ui'
 import { createContext } from 'react';
 
 export interface FlowHandlerContextProps {
@@ -17,7 +16,8 @@ export interface FlowHandlerContextProps {
   currentUserState: UserState;
   currentVerificationMethod: VerificationMethods | undefined;
   initialized: boolean;
-  projectConfig: ProjectConfig | undefined;
+  userNameRequired: boolean;
+  allowUserRegistration: boolean;
   navigateBack: () => ScreenNames;
   emitEvent: (event?: FlowHandlerEvents, eventOptions?: FlowHandlerEventOptions) => Promise<void> | undefined;
   changeFlow: () => void;
@@ -30,7 +30,8 @@ export const initialContext: FlowHandlerContextProps = {
   currentUserState: {},
   currentVerificationMethod: undefined,
   initialized: false,
-  projectConfig: undefined,
+  userNameRequired: true,
+  allowUserRegistration: true,
   navigateBack: () => ScreenNames.Start,
   emitEvent: () => Promise.reject(),
   changeFlow: () => void 0,
diff --git a/packages/react/src/contexts/FlowHandlerProvider.tsx b/packages/react/src/contexts/FlowHandlerProvider.tsx
index da05489b..5ebce16c 100644
--- a/packages/react/src/contexts/FlowHandlerProvider.tsx
+++ b/packages/react/src/contexts/FlowHandlerProvider.tsx
@@ -8,7 +8,6 @@ import type {
   VerificationMethods,
 } from '@corbado/shared-ui';
 import { FlowHandler, FlowHandlerEvents, ScreenNames } from '@corbado/shared-ui';
-import type { ProjectConfig } from '@corbado/types';
 import i18n from 'i18next';
 import type { FC, PropsWithChildren } from 'react';
 import React, { useCallback, useEffect, useMemo, useRef, useState } from 'react';
@@ -34,7 +33,8 @@ export const FlowHandlerProvider: FC<PropsWithChildren<Props>> = ({
   const [currentUserState, setCurrentUserState] = useState<UserState>({});
   const [currentFlow, setCurrentFlow] = useState<FlowNames>();
   const [initialized, setInitialized] = useState(false);
-  const [projectConfig, setProjectConfig] = useState<ProjectConfig | undefined>(undefined);
+  const [userNameRequired, setUserNameRequired] = useState(true);
+  const [allowUserRegistration, setAllowUserRegistration] = useState(true);
   const currentFlowType = useRef<FlowTypeText>();
   const verificationMethod = useRef<VerificationMethods>();
   const onFlowChangeCbId = useRef<number>(0);
@@ -53,7 +53,7 @@ export const FlowHandlerProvider: FC<PropsWithChildren<Props>> = ({
       }
 
       const projectConfig = projectConfigResult.val;
-      const flowHandler = new FlowHandler(projectConfig, onLoggedIn, initialFlowType);
+      const flowHandler = new FlowHandler(corbadoApp, projectConfig, onLoggedIn, initialFlowType);
 
       onFlowChangeCbId.current = flowHandler.onFlowChange(updates => {
         updates.flowName && setCurrentFlow(updates.flowName);
@@ -72,10 +72,11 @@ export const FlowHandlerProvider: FC<PropsWithChildren<Props>> = ({
         setCurrentUserState(value);
       });
 
-      await flowHandler.init(corbadoApp, i18n);
+      await flowHandler.init(i18n);
 
-      setProjectConfig(projectConfig);
       setFlowHandler(flowHandler);
+      setUserNameRequired(flowHandler.userNameRequired);
+      setAllowUserRegistration(flowHandler.allowUserRegistration);
       setInitialized(true);
     })();
 
@@ -112,7 +113,8 @@ export const FlowHandlerProvider: FC<PropsWithChildren<Props>> = ({
       currentUserState,
       currentVerificationMethod: verificationMethod.current,
       initialized,
-      projectConfig,
+      userNameRequired,
+      allowUserRegistration,
       changeFlow,
       navigateBack,
       emitEvent,
diff --git a/packages/react/src/screens/base/authentication/login/Start.tsx b/packages/react/src/screens/base/authentication/login/Start.tsx
index 856b586d..9ed3f4f8 100644
--- a/packages/react/src/screens/base/authentication/login/Start.tsx
+++ b/packages/react/src/screens/base/authentication/login/Start.tsx
@@ -6,7 +6,7 @@ import { AuthFormScreen, FormInput } from '../../../../components';
 import useFlowHandler from '../../../../hooks/useFlowHandler';
 
 export const Start = () => {
-  const { emitEvent, currentUserState, projectConfig } = useFlowHandler();
+  const { emitEvent, currentUserState, allowUserRegistration } = useFlowHandler();
   const { t } = useTranslation('translation', { keyPrefix: `authentication.login.start` });
   const [loading, setLoading] = useState(false);
   const initialized = useRef(false);
@@ -29,7 +29,7 @@ export const Start = () => {
   const headerText = useMemo(() => t('header'), [t]);
   const subHeaderText = useMemo(() => t('subheader'), [t]);
   const flowChangeButtonText = useMemo(
-    () => (projectConfig?.allowUserRegistration ? t('button_signup') : undefined),
+    () => (allowUserRegistration ? t('button_signup') : undefined),
     [t],
   );
   const emailFieldLabel = useMemo(() => t('textField_email'), [t]);
diff --git a/packages/react/src/screens/base/authentication/signup/Start.tsx b/packages/react/src/screens/base/authentication/signup/Start.tsx
index 8f5fd1cf..7dbdfae6 100644
--- a/packages/react/src/screens/base/authentication/signup/Start.tsx
+++ b/packages/react/src/screens/base/authentication/signup/Start.tsx
@@ -7,7 +7,7 @@ import { AuthFormScreen, FormInput } from '../../../../components';
 import useFlowHandler from '../../../../hooks/useFlowHandler';
 
 export const Start = () => {
-  const { currentUserState, projectConfig, emitEvent } = useFlowHandler();
+  const { currentUserState, userNameRequired, emitEvent } = useFlowHandler();
   const { t } = useTranslation('translation', { keyPrefix: `authentication.signup.start` });
   const [emailError, setEmailError] = useState<RecoverableError | null>(null);
   const [userNameError, setUserNameError] = useState<RecoverableError | null>(null);
@@ -31,7 +31,7 @@ export const Start = () => {
   const handleSubmit = useCallback(() => {
     setLoading(true);
 
-    const fullName = projectConfig?.userFullNameRequired ? fullNameRef.current?.value : emailRef.current?.value;
+    const fullName = userNameRequired ? fullNameRef.current?.value : emailRef.current?.value;
 
     void emitEvent(FlowHandlerEvents.PrimaryButton, {
       userStateUpdate: { email: emailRef.current?.value, fullName },
@@ -48,7 +48,7 @@ export const Start = () => {
         submitButtonText={submitButtonText}
         loading={loading}
       >
-        {projectConfig?.userFullNameRequired && (
+        {userNameRequired && (
           <FormInput
             name='fullName'
             label={nameFieldLabel}
diff --git a/packages/react/src/screens/core/SignUp.tsx b/packages/react/src/screens/core/SignUp.tsx
index f3144bf5..92aa4d6e 100644
--- a/packages/react/src/screens/core/SignUp.tsx
+++ b/packages/react/src/screens/core/SignUp.tsx
@@ -1,4 +1,3 @@
-import { NonRecoverableError, useCorbado } from '@corbado/react-sdk';
 import { FlowType } from '@corbado/shared-ui';
 import type { CorbadoSignUpConfig } from '@corbado/types';
 import type { FC } from 'react';
@@ -6,16 +5,8 @@ import React from 'react';
 
 import { AuthFlow } from '../../components';
 import FlowHandlerProvider from '../../contexts/FlowHandlerProvider';
-import useFlowHandler from '../../hooks/useFlowHandler';
 
 const SignUp: FC<CorbadoSignUpConfig> = ({ onSignedUp, navigateToLogin }) => {
-  const { projectConfig } = useFlowHandler();
-  const { setGlobalError } = useCorbado();
-
-  if (!projectConfig?.allowUserRegistration) {
-    setGlobalError(NonRecoverableError.userRegistrationNotAllowed());
-  }
-
   return (
     <div className='cb-container'>
       <FlowHandlerProvider
diff --git a/packages/shared-ui/src/flowHandler/flowHandler.ts b/packages/shared-ui/src/flowHandler/flowHandler.ts
index f78c1328..467f1a46 100644
--- a/packages/shared-ui/src/flowHandler/flowHandler.ts
+++ b/packages/shared-ui/src/flowHandler/flowHandler.ts
@@ -1,5 +1,5 @@
 import type { ProjectConfig, SessionUser } from '@corbado/types';
-import type { CorbadoApp } from '@corbado/web-core';
+import { type CorbadoApp,NonRecoverableError } from '@corbado/web-core';
 import type { i18n } from 'i18next';
 
 import { canUsePasskeys } from '../utils';
@@ -26,6 +26,7 @@ export class FlowHandler {
   #screenHistory: ScreenNames[];
   #config: FlowHandlerConfig;
   #state: FlowHandlerState | undefined;
+  #corbadoApp: CorbadoApp;
 
   #onFlowUpdateCallbacks: Array<(updates: FlowHandlerUpdates) => void> = [];
   #onUserStateChangeCallbacks: Array<(v: UserState) => void> = [];
@@ -34,12 +35,23 @@ export class FlowHandler {
    * The constructor initializes the FlowHandler with a flow name, a project configuration, and a flow handler configuration.
    * It sets the current flow to the specified flow, the current screen to the Start screen, and initializes the screen history as an empty array.
    */
-  constructor(projectConfig: ProjectConfig, onLoggedIn: () => void, initialFlowType: FlowType = FlowType.SignUp) {
-    if (!projectConfig.allowUserRegistration) {
-      initialFlowType = FlowType.Login;
+  constructor(corbadoApp: CorbadoApp | undefined, projectConfig: ProjectConfig, onLoggedIn: () => void, initialFlowType?: FlowType) {
+    if (!corbadoApp) {
+      throw new Error('corbadoApp is undefined. This should not happen.');
     }
 
-    this.#config = new FlowHandlerConfig(onLoggedIn, projectConfig, initialFlowType);
+    let flowType = initialFlowType;
+    
+    if (projectConfig.allowUserRegistration === false) {
+      if (initialFlowType === FlowType.SignUp) {
+      corbadoApp.globalErrors.next(NonRecoverableError.userRegistrationNotAllowed())
+      } else {
+        flowType = FlowType.Login;
+      }
+    }
+
+    this.#corbadoApp = corbadoApp;
+    this.#config = new FlowHandlerConfig(onLoggedIn, projectConfig, flowType);
     this.#screenHistory = [];
     this.#currentScreen = this.#config.initialScreenName;
   }
@@ -48,11 +60,7 @@ export class FlowHandler {
    * Initializes the FlowHandler.
    * Call this function after registering all callbacks.
    */
-  async init(corbadoApp: CorbadoApp | undefined, i18next: i18n) {
-    if (!corbadoApp) {
-      throw new Error('corbadoApp is undefined. This should not happen.');
-    }
-
+  async init(i18next: i18n) {
     const passkeysSupported = await canUsePasskeys();
 
     this.#state = new FlowHandlerState(
@@ -63,7 +71,7 @@ export class FlowHandler {
         emailError: undefined,
       },
       passkeysSupported,
-      corbadoApp,
+      this.#corbadoApp,
       i18next,
     );
 
@@ -86,6 +94,14 @@ export class FlowHandler {
     return this.#config.verificationMethod;
   }
 
+  get userNameRequired() {
+    return this.#config.userNameRequired;
+  }
+
+  get allowUserRegistration() {
+    return this.#config.allowUserRegistration;
+  }
+
   /**
    * Method to add a callback function to be called when the current flow changes.
    * @param cb The callback function to be called when the current flow changes.
diff --git a/packages/shared-ui/src/flowHandler/flowHandlerConfig.ts b/packages/shared-ui/src/flowHandler/flowHandlerConfig.ts
index de36bdfe..8f37f2fb 100644
--- a/packages/shared-ui/src/flowHandler/flowHandlerConfig.ts
+++ b/packages/shared-ui/src/flowHandler/flowHandlerConfig.ts
@@ -14,11 +14,13 @@ export class FlowHandlerConfig {
   readonly #onLoggedIn: () => void;
   readonly #initialScreenName: ScreenNames;
   readonly #flowDetails: FlowDetails;
+  readonly #projectConfig: ProjectConfig;
   #flowType: FlowType;
 
   constructor(onLoggedIn: () => void, projectConfig: ProjectConfig, initialFlowType: FlowType = FlowType.SignUp) {
     this.#onLoggedIn = onLoggedIn;
     this.#flowType = initialFlowType;
+    this.#projectConfig = projectConfig;
     this.#flowDetails = this.#getFlowDetails(projectConfig);
     this.#initialScreenName = this.#getInitialScreenName();
   }
@@ -47,6 +49,14 @@ export class FlowHandlerConfig {
     return this.#flowDetails[this.#flowType].options.verificationMethod ?? 'emailOtp';
   }
 
+  get userNameRequired() {
+    return this.#projectConfig.userFullNameRequired;
+  }
+
+  get allowUserRegistration() {
+    return this.#projectConfig.allowUserRegistration;
+  }
+
   // The update method allows the type of flow to be changed,
   // and updates the flow name and options accordingly.
   update(flowType: FlowType) {
diff --git a/playground/react/.env b/playground/react/.env
index 8875c052..abc9d0a0 100644
--- a/playground/react/.env
+++ b/playground/react/.env
@@ -1,5 +1,5 @@
 # Flow: PasskeySignupWithEmailOTPFallback
-REACT_APP_CORBADO_PROJECT_ID=pro-8793272752372175738
+REACT_APP_CORBADO_PROJECT_ID=pro-503401103218055321
 
 # Flow: PasskeySignupWithEmailOTPFallback + Email Link verification method
 # REACT_APP_CORBADO_PROJECT_ID=pro-423122463392265807
\ No newline at end of file