Hi R THAMIZH MANI - 220100106,
Greetings & Welcome to Microsoft Q&A forum! Thanks for posting your query!
Please go to Azure Portal, go to the storage account you connected to your Azure Language resource, on the left panel, select Access Control, click the Add button and add the role as the second screenshot.
Add 'storage blob data contributor' role for the user on the storage account even though you are the owner of the storage account.
After adding the Storage Blob Data Contributor
role on the Azure Storage account level and then wait for 15 minutes and then test again from the language studio. It will work.
Hope this helps. Do let us know if you have any further queries.
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