50509: Programmable Chat: Media message body cannot be updatedPositive FeedbackNegative FeedbackERROR: 50509error-50509 page anchorPositive FeedbackNegative FeedbackPROGRAMMABLE CHATERROR Programmable Chat: Media message body update not allowedprogrammable-chat-media-message-body-update-not-allowed page anchorPositive FeedbackNegative Feedback Possible Causespossible-causes page anchorPositive FeedbackNegative Feedback Media message body cannot be updated.