21652: Maximum subject length is 40 charactersPositive FeedbackNegative FeedbackERROR: 21652error-21652 page anchorPositive FeedbackNegative FeedbackPROGRAMMABLE SMSERROR Error - 21652error---21652 page anchorPositive FeedbackNegative Feedback Maximum subject text length is 40 charactersmaximum-subject-text-length-is-40-characters page anchorPositive FeedbackNegative FeedbackThe subject text of your message should be 40 characters or less.