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To save MobileMap settings to a feature service, copy existing settings into the Map Properties ‘Description’ field. When the service is published (or republished) the settings can be imported into MobileMap by using Actions > Import Settings.
While adding MobileMap seetings settings to the Feature Service is not required, it is recommended in order to provide efficient and consistent configuration of MobileMap devices. Note that there are some situations where this may not be desired (e.g., cases where MobileMap settings will be imported from settings files, rather than the feature service due to the use of different settings under different scenarios).
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