@CV_10226849 ,
Are you trying to modify a user image in a mashup? Additionally, are you using the default authenticator for ThingWorx or something like SSO?
If you're using the default authenticator, you could assign another user extension property called imageUrl (if there isn't one there already) and set that dynamically through a service or bindings in the mashup composer.
If you're using SSO, you may be able to get the user image url in the SAML token and map that to a user extension property.
Hope that helps,
Nick
