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update a hard coded widget / script gs.message

I recently encountered an issue with gs.getMessage without a corresponding message in UI messages, effectively the message string being hard coded in the widget code. Became evident in the online checkin widget for Walk-up Experience (NY version)

the resolution is simple: simply create a UI message in the application scope of the widget being looked at, and give its key name the exact wording of the hard coded gs.getMessage string

example

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