i searched alot but hard to find. is there way to find push alert text message?
Why do you mean by 'find'? Please try to explain in detail what you want to do and you may get better responses.
Since you don't specify what platform you are working on, it's hard to give specific information. I would suggest starting with the Notifications Overview in the Xamarin docs and continue reading from there. It includes discussion of 3rd-party cross-platform APIs for handling notifications, as well as Android- and iOS-specific details.
Those articles and the links they include should tell you all you need to know about notifications.
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