What is Magento API
Magento API is a framework that allows developers and integrators to use web third-party services for communicating with the Magento system. By means of the API, you can establish the connection between your Magento instance and third-party software.
This connection may be used to automatically exchange product, order, or customer information, optimizing the data transfer process as a result.
Does M2E Pro detect changes made by Magento API
M2E Pro operates based on core Magento functionality. The extension identifies product updates made through the standard Magento interface and synchronizes them on Channels.
Magento API is considered to be an external tool. If you are using it to update your product data, M2E Pro may not catch these changes.
M2E Pro does not respond to updates performed directly by Magento API. Instead, it reacts to certain Magento events responsible for catalog changes. Thus, the extension will detect the updates made by Magento API only if they are initiated by the following Magento events:
Otherwise, M2E Pro will not be able to track changes made to Magento Products and automatically update them on Channels.