Module interface Management System and Amazon

Automatic interface module via API between Management System and Amazon. The module must allow you to keep the Management inventory synchronized with the advertisements published on the reference Marketplace. It must take care of importing the orders from the Marketplace to the Management System. The module will have to import any category update to the management software if the Marketplaces updates them. They are made available to the API, documentation will be provided after contact, which allow you to query the Management. Functional requirements: 1. Synchronization of advertisements: Uploading new advertisements on the MarketPlace; 2. Updating of existing advertisements; 3. Elimination of the advertisements sold; Order synchronization: 1. Import of orders received from the marketplace into the Management System; 2. Import of customer data + contact details; 3. Update of the order on the Marketplace (status, tracking code, ..); 4. Updating the status of the objects in the order; Import of Marketplace Categories in the Management System; The log of the synchronization operations will be done on a daily text file saved on Google Cloud Storage; In the event of a serious error (Authentication failed) an email must be sent to libraryadmin and superadmin. NON-Functional Requirements: Implemented in PHP License Activation Key? It will have to be executed as a Task from Google App Engine Google Cloud Storage will be used for the storage of log files and interchange The tasks must be able to be performed with cronjobs called upon triggering an event To retrieve the results of the requests we ask that the tasks be used of Callback Code not encrypted, readable and well commented The identifier of the marketplace for the API calls of the Management System must be a configurable parameter so that it can be replaced without intervening on the code if "amazon" is currently needed