Until BizTalk 2016, there was no direct way to communicate with Azure Blob storage to send files. Hence, we had to use WCF-WebHttp adapter to send files to the blob storage. It also required us to write a custom pipeline component to strip the filename from the file path (example – “file.txt” from “c:\files\file.txt” ) before sending it to Azure Blob storage else the file name in Azure blob storage would end up being “c:\files\file.txt” instead of just “file.txt”. However, BizTalk Server 2020 comes in with a built in Azure Blob Storage adapter using which you can directly communicate with the blob storage. This also eliminates the need for a custom pipeline. Click here to read the article.