50400: Programmable Chat: User not member of channelPositive FeedbackNegative FeedbackERROR: 50400error-50400 page anchorPositive FeedbackNegative FeedbackPROGRAMMABLE CHATERROR Descriptiondescription page anchorPositive FeedbackNegative Feedback Possible Causespossible-causes page anchorPositive FeedbackNegative Feedback Specified User is not member of this Channel. Possible Solutionspossible-solutions page anchorPositive FeedbackNegative Feedback Confirm a valid User who is Member of this Channel is being passed in request.