When running RA workflows through Service Desk, a single application through SDM works as expected. But when testing it for multiple application, it fails with error "Your password for authentication realm: <http://svn_ipaddress:108080> repository can only be stsored to disk unencrypted. You are advised to configure your system so that subversion can store passwords encrypted."
User permission in SVN caused the problem.
Created an administrator equivalent account in SVN and used it for deployments.