50204: Programmable Chat: Username not providedERROR: 50204error-50204 page anchorERROR Error - 50204error---50204 page anchor IP Messaging: Username not providedip-messaging-username-not-provided page anchor Possible Causespossible-causes page anchor Request does not contain required "Username" parameter. Possible Solutionspossible-solutions page anchor Confirm a valid "Username" parameter is being passed in request.