---
title: "How do I get opt-in consent from customers and manage them for WhatsApp messaging using SMSGatewayCenter?"
description: "To send proactive business-initiated messages outside the 24-hour Customer Care Window on WhatsApp, you must obtain opt-in consent from customers. SMSGatewayCenter makes it easy to collect and manage these opt-ins while ensuring compliance with WhatsApp’s policies. Here’s how to do…"
url: "https://www.smsgatewaycenter.com/blog/kb/how-do-i-get-opt-in-consent-from-customers-and-manage-them-for-whatsapp-messaging-using-smsgatewaycenter/"
updated: "2025-05-13"
category: WhatsApp Business API
---

# How do I get opt-in consent from customers and manage them for WhatsApp messaging using SMSGatewayCenter?

To send proactive business-initiated messages outside the 24-hour Customer Care Window on WhatsApp, you must obtain opt-in consent from customers. SMSGatewayCenter makes it easy to collect and manage these opt-ins while ensuring compliance with WhatsApp’s policies. Here’s how to do it:

#### Understanding Opt-In Requirements

WhatsApp requires businesses to get explicit opt-in consent before messaging customers. This ensures customers receive only useful and expected messages from businesses they want to hear from. Supported opt-in methods include:

- SMS
- Website forms
- In a WhatsApp thread
- Over the phone via Interactive Voice Response (IVR) flows
- In person or on paper (e.g., signed physical documents)
  We recommend designing user-friendly opt-in flows to optimize the customer experience.

#### Adding Opt-Ins on SMSGatewayCenter

1. **Access the Add Opt-In Page**
   - Log in to your SMSGatewayCenter account at [https://unify.smsgateway.center/](https://unify.smsgateway.center/).
   - Navigate to the *Add Opt-In* page under the WhatsApp Business API section in your dashboard.
2. **Enter Opt-In Details**
   - Select your WhatsApp Business API (WABA) number from the dropdown list.
   - In the *Mobile Number* field, add the phone numbers of customers who have opted in. You can add single or multiple numbers, separated by commas or new lines.
   - Ensure all numbers include the country code prefix (e.g., +91 for India).
   - Click *Save Changes* to add the numbers to your opt-in list.

#### Managing Opt-Ins

1. **Access the Manage Page**
   - Go to the *Manage* page in the WhatsApp Business API section of your dashboard to view your opt-in clients list.
2. **Manage Your Opt-In List**
   - View the status of each number (opt-in or opted out).
   - See the mobile number associated with each opt-in client.
   - Use the search field to find specific mobile numbers.
   - Delete any opt-in number if needed.
   - Manually mark a number as opted out by clicking the *Thumbs Down* button.

By following these steps, you can ensure compliance with WhatsApp’s opt-in policies while effectively managing your customer communications. For further assistance, contact our support team at contact @ smsgatewaycenter . com or call +912228657726.

### More Related Articles

- [Who can see my flows and responses?](https://www.smsgatewaycenter.com/blog/kb/who-can-see-my-flows-and-responses/)
- [Does SMSGatewayCenter share my flow JSON with third parties?](https://www.smsgatewaycenter.com/blog/kb/does-smsgatewaycenter-share-my-flow-json-with-third-parties/)
- [Is flow response data secure?](https://www.smsgatewaycenter.com/blog/kb/is-flow-response-data-secure/)

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