upload data from on-premises folder to Azure DB as the server admin is SQL authenticated user I have azure SQL DB, with SQL authenticated user as server admin, we have a requirement to upload data from on-premises folder to Azure DB. How can we achieve this?
1.SQL authenticated user is not recognized in AD
2.is there any service account other than this server admin to az-sql-dbs?
You can use Azure SSIS integration with Azure Data Factory as explained here. On this resource you will find how to run packages that use Windows Authentication to connect to on-premises resources like a folder.

Hope this helps.