To get the Trendyol API key, after logging into your Trendyol store account, enter the "My Account" section in the top menu. Here in the integration information tab, you will find your Vendor ID, API Key and API Secret information. After receiving the API information, it is sufficient to copy-paste the information you have received in the Trendyol section in the My Stores section of the Onreon panel to the required fields and then click save. After this process, you have established the first connection between Trendyol and Onreon.