Automating Azure SQL DB index and statistics maintenance using Azure Automation

Hello Im testing the runbook, but i get the next message. I have already enable the firewall rules and created the user in the database

Invoke-Sqlcmd : Cannot open database "********.database.windows.net" requested by the login. The login 

failed.

Login failed for user '******'.

At line:6 char:16

+ ... LOutput = $(Invoke-Sqlcmd -ServerInstance $AzureSQLServerName -Userna ...

+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : InvalidOperation: (:) [Invoke-Sqlcmd], SqlException

    + FullyQualifiedErrorId : SqlExceptionError,Microsoft.SqlServer.Management.PowerShell.GetScriptCommand

 

Invoke-Sqlcmd : 

At line:6 char:16

+ ... LOutput = $(Invoke-Sqlcmd -ServerInstance $AzureSQLServerName -Userna ...

+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    + CategoryInfo          : ParserError: (:) [Invoke-Sqlcmd], ParserException

    + FullyQualifiedErrorId : ExecutionFailureException,Microsoft.SqlServer.Management.PowerShell.GetScriptCommand

 Any ideas

Thanks  in advance