Installation
To install the PayPal Checkout payment module, install different versions depending on your OXID eShop version:
- If you have OXID eShop version 7.x, install PayPal Checkout 3.x (see Installing PayPal Checkout). 
- If you have OXID eShop version 6.3.x to 6.5.x, install PayPal Checkout 2.x.x. 
 For more information, see the corresponding module documentation under Installing PayPal Checkout 2.3.x.
- If you have OXID eShop version 6.1.x or 6.2.x, install PayPal Checkout 1.x.x. 
 For more information, see the corresponding module documentation under Installing PayPal Checkout 1.3.x.
Earlier versions of OXID eShop are not supported.
Installing PayPal Checkout
For OXID eShop version 7.x, install the payment module PayPal Checkout version 3.4.x.
Prerequisites
- You have installed OXID eShop version 7.x. 
- You have configured https. - In the - <root directory of the eShop>/sourcedirectory, open the- config.inc.phpfile.
- Make sure that https is set for the base URL (shopURL parameter). 
 Example:- $this->sShopURL = 'https://www.example.org'; 
 
Procedure
- Open a shell and change to the root directory of the eShop (where the file - composer.jsonis located).
 Example:- cd /var/www/oxideshop 
- Execute the following commands: - composer require oxid-solution-catalysts/paypal-module ^3.4.0 
- Optional: To activate the module, run the following command. 
 Alternatively: Activate the module manually during configuration (see Activating PayPal Checkout manually).- ./vendor/bin/oe-console oe:module:activate osc_paypal 
Result
When the installation process is finished, the module PayPal Checkout for OXID appears in the administration area under (Fig.: PayPal Checkout for OXID installed successfully).
 
Fig.: PayPal Checkout for OXID installed successfully
Installing a Minor Update
- To perform a minor update, for example from PayPal Checkout version 3.3.0 to version 3.4.0, execute the following commands:. - composer require --update-with-all-dependencies oxid-solution-catalysts/paypal-module ^3.4.0 
- To be able to use new payment methods or functions, go through the registration process (onboarding) again. - For more information, see API Credentials: Onboarding.