Octopush
You can use Octopush to send out the order status update, and shipping & delivery SMS notifications to your customers.
Setup Octopush SMS Integration
To set up the SMS notifications, on your WordPress admin, go to SMS Settings > Settings, and click on the SMS Service Provider:
- Select Octopush from the list of SMS service providers
- Add your Octopush Login id, Octopush API key, and Sender phone number (given to you by Octopush)

How to get your Octopush API Key:
- Login into your Octopush account.
- Navigate to API Credentials
- You will need to enter your Login key & API key in your General Settings.
- Copy the API Key and use it in the SMS provider settings.

About Octopush
Octopush lets you send SMS messages globally, through A Web Based SMS Portal or Transactional SMS via SMS Gateway API. Using octopush SMS you can be confident your customers and staff are receiving and reading your SMS messages.