Before you can do anything, you first need to create an access to the web service.
Enabling the web service
Go in the PrestaShop back - office, open the "Web service" page under the "Advanced Parameters" menu, and then choose "Yes" for the "Enable PrestaShop Webservice" option.
In previous versions of PrestaShop, you had to create a
This is no longer the case in PrestaShop 1.5+: the
Creating your access
Open the "Web service" page under the "Advanced Parameters", and then click the "Add New" button to access the account configuration section. A long form appears: