TNS Database Error Messages TNS-00229: Error in call: unable to deliver message:string:stringstringstring October 8, 2020 mpbod TNS-00229: Error in call: unable to deliver message:string:stringstringstring Cause: Destination for call is unavailable. Action: No action required. Back to previous menu https://support.oracle.com/ http://www.oracle.com/ Share this:Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pocket (Opens in new window)