---
title: What are the Maximum and Minimum OTP Expiry Times on SMS Gateway Center?
description: "When using **SMSGatewayCenter**’s **[Integrated OTP SMS](https://www.smsgatewaycenter.com/integrated-otp-sms/)** service, you have the flexibility to customize the OTP expiry time to suit your needs. The expiry time determines how long the one-time password (OTP) remains valid before it becomes unusable, ensuring both security…"
url: "https://www.smsgatewaycenter.com/blog/kb/what-are-the-maximum-and-minimum-otp-expiry-times-on-sms-gateway-center/"
updated: "2025-06-15"
category: Bulk SMS / Integrated OTP SMS
---

# What are the Maximum and Minimum OTP Expiry Times on SMS Gateway Center?

When using **SMSGatewayCenter**’s **[Integrated OTP SMS](https://www.smsgatewaycenter.com/integrated-otp-sms/)** service, you have the flexibility to customize the OTP expiry time to suit your needs. The expiry time determines how long the one-time password (OTP) remains valid before it becomes unusable, ensuring both security and user convenience.

In our **[Generate OTP API](https://www.smsgatewaycenter.com/developer-api/generate-otp/)**, we’ve included an optional parameter called **codeExpiry**, which allows you to set the OTP expiry time in seconds. Here’s what you need to know:

- **Default Expiry Time:** If you don’t specify a value, the OTP expires in **300 seconds** (5 minutes). This strikes a balance between giving users enough time to enter the code and maintaining security.
- **Customizable Range:** You can adjust the **codeExpiry** value based on your requirements. While there’s no strict maximum or minimum enforced by the API, we recommend setting a practical range:
  - **Minimum:** As low as **30 seconds** for high-security scenarios (e.g., financial transactions).
  - **Maximum:** Up to **1800 seconds** (30 minutes) or more for less time-sensitive use cases (e.g., account recovery).

### How to Set OTP Expiry Time:

Simply include the **codeExpiry** parameter in your [**Generate OTP API**](https://www.smsgatewaycenter.com/developer-api/generate-otp/) request and specify the duration in seconds. For example:

- **codeExpiry**: 120 sets the OTP to expire in 2 minutes.
- **codeExpiry**: 600 extends it to 10 minutes.

#### Why It Matters:

Customizing the OTP expiry time lets you tailor the authentication experience. A shorter expiry enhances security by reducing the window for misuse, while a longer expiry improves usability for users who might need extra time. With **SMSGatewayCenter**, you’re in control—set it as per your application’s unique needs!

Ready to optimize your OTP flow? Check out our **[API documentation](https://www.smsgatewaycenter.com/developer-api/)** and start integrating today!

### More Related Articles

- [Under Which Category Should I Register My OTP Templates on the DLT Portal?](https://www.smsgatewaycenter.com/blog/kb/under-which-category-should-i-register-my-otp-templates-on-the-dlt-portal/)
- [What’s the Difference Between OTP SMS and Integrated OTP SMS on SMS Gateway Center?](https://www.smsgatewaycenter.com/blog/kb/whats-the-difference-between-otp-sms-and-integrated-otp-sms-on-sms-gateway-center/)
- [How Can I Resend an OTP if Users Don’t Receive It After the First Few Attempts?](https://www.smsgatewaycenter.com/blog/kb/how-can-i-resend-an-otp-if-users-dont-receive-it-after-the-first-few-attempts/)

Found this useful?[Add as Preferred Source on Google](https://www.google.com/preferences/source?q=smsgatewaycenter.com)