# Notification Process: Automatic and Manual

In this section, we will explore when notifications are sent to customers and how merchants can manually trigger them.

## [Email, SMS, and Integrated WhatsApp Channels](https://app.gitbook.com/o/RxY0H8C3fNw3knTb5iVs/s/Mhsq1xc7685E7egVxfcG/~/changes/199/payment/7.-notification-communication-channels/notification-process-automatic-and-manual#email-sms-and-integrated-whatsapp-channels)

These channels send notifications to customers in two ways:

1. **Automatic Notification**: A notification is automatically sent to the customer once a specific trigger state occurs.
2. **Manual Notification**: Merchants can manually trigger notifications by clicking on the three dots under the **Action** header within the Transaction Table. Then, select the icon of the desired notification channel (Email, SMS, or WhatsApp). Typically, the **Action** header is located at the end of each transaction row in the Transaction Table. For more details, refer to the [Transaction Table](https://sandbox-doc.gitbook.io/ottu-team-sandbox-doc/user-guide-proposal/payment-recording-and-management/payment-transaction-records#transaction-table) section.

## [Manual WhatsApp Channel](https://app.gitbook.com/o/RxY0H8C3fNw3knTb5iVs/s/Mhsq1xc7685E7egVxfcG/~/changes/199/payment/7.-notification-communication-channels/notification-process-automatic-and-manual#manual-whatsapp-channel)

This channel does not send notifications automatically. Merchants must manually trigger WhatsApp notifications through [Transaction Table](https://sandbox-doc.gitbook.io/ottu-team-sandbox-doc/user-guide-proposal/payment-recording-and-management/payment-transaction-records#transaction-table) as mentioned in the above section.

<figure><img src="https://content.gitbook.com/content/uvuyQluEi5QMHcp2TcU7/blobs/FP7869O9MFg6Kfqe7pm7/image.png" alt=""><figcaption><p>Manual Notification</p></figcaption></figure>
