I am developing a background service with .Net, that will upload some videos to the azure media services platform and I would like to add some custom metadata to each video I will upload. I have google for some time, and I found that there is no possibility to upload an asset. How to Add Metadata to assets in Azure Media Services? but having a look to the Azure dashboard I found, that selecting the properties of an asset I am able to add custom metadata manually. My question is, anybody have any idea how can I add this custom fields thougth through the azure media services API. Thanks in advance.