21701: The Messaging Service does not existERROR: 21701error-21701 page anchorERROR Error - 21701error---21701 page anchor The Messaging Service does not exist.the-messaging-service-does-not-exist page anchorThe Messaging Service resource you are referencing does not exist Possible Solutionspossible-solutions page anchor Double check the Messaging Service Sid parameter that you are using