Hello @Support-SaaSMart Private Limited ,
I was able to repro the issue locally
While creating the container for the SFTP enabled storage account if the Home directory is not specified it needs to be accessed using below syntax (i.e. container name needs to be mentioned)
myaccount.mycontainer.myuser@customdomain.com
Reference document: https://video2.skills-academy.com/en-us/azure/storage/blobs/secure-file-transfer-protocol-support-how-to?tabs=azure-portal
Please try out and let us know.