Hi, even it isn't the place to discuss WinForm solutions, I made a research about it:https://stackoverflow.com/questions/912741/how-to-delete-cookies-from-windows-formDoes it solve your problem?

Thanks!After clearing the cookies, the POST request was succesful!Thanks again!

Hi, I'm using a private app to manage our shops, in order to sync the products from the ERP used by my company.We want to update the product images via API, because we still upload them manually when a new product is created.the request JSON is forma...