@Debayan Mukherjee​ @Tarique Anwar​ @Vidula Khanna​ 

Even we're facing this issue while creating table from databricks sql.

create table test using delta location 'abfss://[container_name]@[storage_account].dfs.core.windows.net/'

We created external_location, storage_credentail with access_connector id. And provided storage blob data contributor role for access conenctor id. It was working until day before yesterday, not from yesterday. Getting below error

"AuthenticationFailed, "Server failed to authenticate the request. Make sure the value of Authorization header is formed correctly including the signature"

I followed the link shared- https://learn.microsoft.com/en-us/answers/questions/334786/azure-blob-storage-fails-to-authenticate-... along with the stack over flow - https://stackoverflow.com/questions/24492790/azurestorage-blob-server-failed-to-authenticate-the-req... which is pointing but still no luck.

if we have to control api version in header, isn't it something in control of databricks? as we're using databricks sql.