---
title: What happens if my OAuth token expires?
description: Learn what happens when your OAuth token expires in FreJun, common 401 errors, and how to implement token refresh logic to keep your API and SDK integrations running smoothly.
---

[Skip to content](https://knowledge.frejun.com/what-happens-if-my-oauth-token-expires#main-content)

![FreJun-4](https://knowledge.frejun.com/hs-fs/hubfs/FreJun-4.png?width=265&height=114&name=FreJun-4.png)

Open main navigation

Close main navigation

- [Go to frejun.com](https://frejun.com/)

[Go to frejun.com](https://frejun.com/)

 Hello. How can we help you?

- There are no suggestions because the search field is empty.

1. [Customer Support](https://knowledge.frejun.com/?hsLang=en)
2. [APIs and SDKs FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en)
3. [FreJun SDK – Edge Case FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#frejun-sdk-edge-case-faqs)

# What happens if my OAuth token expires?

## Understand how OAuth token expiration impacts FreJun API and SDK requests, common error scenarios, and how to prevent service disruptions with proper token refresh handling.

OAuth tokens play a critical role in authenticating API and SDK requests within FreJun. When an OAuth token expires, your application may no longer be authorized to access FreJun services, leading to failed requests or unexpected behavior. Understanding how token expiration works helps you maintain uninterrupted API communication and system reliability.

In this article, we explain what happens when your OAuth token expires, how it affects FreJun API and SDK requests, common error responses like HTTP 401, and best practices for implementing secure token refresh logic to avoid downtime.

**What happens if my OAuth token expires?**

Your API or SDK requests will fail silently or return 401 errors. Make sure you handle token refresh logic properly and pass the updated token.

If you have any more questions or need assistance, feel free to reach out to us at Hello@frejun.com. We’re here to help!

[Sign up](https://product.frejun.com/signup)with FreJun for free

- [Support FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#main-content)

    - [Dashboard FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#dashboard-faqs)
    - [Call Logs FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#call-logs-faqs)
    - [Contact List FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#contact-list-faqs)
    - [Campaigns FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#campaigns-faqs)
    - [Autodial FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#autodial-faqs)
    - [Surveys FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#surveys-faqs)
    - [Users and Teams FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#users-and-teams-faqs)
    - [User Management Access FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#user-management-access-faqs)
    - [Settings FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#settings-faqs)
    - [Chrome Extension FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#chrome-extension-faqs)
    - [Mobile App FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#mobile-app-faqs)
    - [Virtual Numbers FAQs](https://knowledge.frejun.com/support-faqs?hsLang=en#virtual-numbers-faqs)
- [General Queries FAQs](https://knowledge.frejun.com/general-queries-faqs?hsLang=en)
- [Sales FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#main-content)

    - [Trial FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#trial-faqs)
    - [Plans & Pricing FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#plans-pricing-faqs)
    - [Virtual number FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#virtual-number-faqs)
    - [UAE calling FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#uae-calling-faqs)
    - [AI Insights FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#ai-insights-faqs)
    - [SMS & MMS FAQs](https://knowledge.frejun.com/sales-faqs?hsLang=en#sms-mms-faqs)
- [Troubleshooting FAQs](https://knowledge.frejun.com/troubleshooting-faqs?hsLang=en)
- [Usage Policies](https://knowledge.frejun.com/usage-policies?hsLang=en)
- [Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#main-content)

    - [Hubspot Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#hubspot-integration-faqs)
    - [Pipedrive Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#pipedrive-integration-faqs)
    - [Salesforce Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#salesforce-integration-faqs)
    - [Deskera Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#deskera-integration-faqs)
    - [Dynamic 365 Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#dynamic-365-integration-faqs)
    - [Zoho Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#zoho-integration-faqs)
    - [LeadSquare Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#leadsquare-integration-faqs)
    - [Freshworks Integration FAQs](https://knowledge.frejun.com/integration-faqs?hsLang=en#freshworks-integration-faqs)
- [Virtual Numbers](https://knowledge.frejun.com/virtual-numbers?hsLang=en#main-content)

    - [Indian Virtual number](https://knowledge.frejun.com/virtual-numbers?hsLang=en#indian-virtual-number)
    - [Virtual Numbers :- Singapore/Australia/New Zealand](https://knowledge.frejun.com/virtual-numbers?hsLang=en#virtual-numbers-singapore-australia-new-zealand)
    - [UAE Virtual Number](https://knowledge.frejun.com/virtual-numbers?hsLang=en#uae-virtual-number)
    - [Virtual Number- Others](https://knowledge.frejun.com/virtual-numbers?hsLang=en#virtual-number-others)
    - [US Messaging and 10 DLC](https://knowledge.frejun.com/virtual-numbers?hsLang=en#us-messaging-and-10-dlc)
- [Finance and Billing FAQs](https://knowledge.frejun.com/finance-and-billing-faqs?hsLang=en)
- [APIs and SDKs FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#main-content)

    - [Authentication & API Access FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#authentication-api-access-faqs)
    - [Calling Features FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#calling-features-faqs)
    - [User Management – Detailed FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#user-management-detailed-faqs)
    - [Call Logs & Analytics FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#call-logs-analytics-faqs)
    - [Webhooks FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#webhooks-faqs)
    - [Managing Webhooks FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#managing-webhooks-faqs)
    - [Supported Webhook Events FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#supported-webhook-events-faqs)
    - [Additional Tools FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#additional-tools-faqs)
    - [FreJun Softphone Web SDK – FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#frejun-softphone-web-sdk-faqs)
    - [FreJun SDK – Edge Case FAQs](https://knowledge.frejun.com/apis-and-sdks-faqs?hsLang=en#frejun-sdk-edge-case-faqs)
- [Partners and Resellers FAQs](https://knowledge.frejun.com/partners-and-resellers-faqs?hsLang=en)
- [FreJun Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#main-content)

    - [FreJun Non India Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-non-india-plans-and-pricing)
    - [FreJun India Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-india-plans-and-pricing)
    - [FreJun UAE Plans and Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-uae-plans-and-pricing)
    - [FreJun Teler Pricing for India & UAE](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#frejun-teler-pricing-for-india-uae)
    - [SIP Trunking Pricing](https://knowledge.frejun.com/frejun-plans-and-pricing?hsLang=en#sip-trunking-pricing)
- [WhatsApp Business Integration FAQs](https://knowledge.frejun.com/whatsapp-business-integration-faqs?hsLang=en)
- [IVR FAQs](https://knowledge.frejun.com/ivr-faqs?hsLang=en)
- [Teler FAQs](https://knowledge.frejun.com/teler-faqs?hsLang=en#main-content)

    - [General](https://knowledge.frejun.com/teler-faqs?hsLang=en#general)
    - [Getting Started & SDKs](https://knowledge.frejun.com/teler-faqs?hsLang=en#getting-started-sdks)
    - [Billing & Credits](https://knowledge.frejun.com/teler-faqs?hsLang=en#billing-credits)
    - [Pricing](https://knowledge.frejun.com/teler-faqs?hsLang=en#pricing)
    - [Coverage & Telephony](https://knowledge.frejun.com/teler-faqs?hsLang=en#coverage-telephony)
    - [Security & Compliance](https://knowledge.frejun.com/teler-faqs?hsLang=en#security-compliance)
    - [Roadmap / Upcoming Features](https://knowledge.frejun.com/teler-faqs?hsLang=en#roadmap-upcoming-features)
    - [Developer Support & SLAs](https://knowledge.frejun.com/teler-faqs?hsLang=en#developer-support-slas)
    - [Integration & Extensibility](https://knowledge.frejun.com/teler-faqs?hsLang=en#integration-extensibility)
    - [Migration & Compatibility](https://knowledge.frejun.com/teler-faqs?hsLang=en#migration-compatibility)
- [Gong Integration](https://knowledge.frejun.com/gong-integration?hsLang=en)

[![Chill listening crop-3](https://knowledge.frejun.com/hs-fs/hubfs/FreJun%20Logo.png?width=163&height=34&name=FreJun%20Logo.png "Chill listening crop-3")](http://frejun.com)

Copyright © 2026, FreJun