Hello TOCHTERMANN DAMIEN,
Thank you for reaching out to our technical support forum.
At the moment, EasyStore uses its own built-in cart and routing structure, which does limit direct integration with external eCommerce components. We understand how having a customizable cart URL or override option could be very useful, especially for setups where different components are used together.
If you have any specific workflow in mind, feel free to share more details. That would help us better evaluate the requirement.
Best regards