Simplify Drupal Commerce Plugin
Integrate Simplify Commerce into your drupal applications to accept payments easily. The Simplify Commerce Drupal module is built on top of the Commerce & Libraries modules. The best way to get started is to download the Commerce 2 and take it from there.
Download the simplify-commerce.zip
If not already installed, download the (dependency) Libraries module: http://drupal.org/project/libraries
Install & enable Simplify Commerce and Libraries (if not already installed/enabled) modules as usual: /admin/modules
Run the database update to reflect the module installation using update screen(https://www.yourwebsite.com/update.php).
Verify Simplify Commerce (On-site) is available in Commerce >> Configuration >> Payment gateways >> Add Payment gateway.
Configure Simplify Commerce:
Create an account at https://www.simplify.com/commerce/
Get your Public & Private Keys (Choose Sandbox keys for testing purposes) Ref: https://www.simplify.com/commerce/app#/account/apiKeys
Add your public & private API Keys using Commerce >> Configuration >> Payment gateways >> Add Payment gateway >> select Simplify Commerce (On-site).
Note: Test with your 'Sandbox' keys first. Ref: https://www.simplify.com/commerce/docs/tutorial/index#testing
When ready to process real payments, edit the values and input your 'Live' keys.