Contact to Save Up To 60% on App Development Costs Contact Us

Firebase Cloud Messaging (FCM) – Everything You Need To Know

  • Thursday, May 20, 2021
  • 4 Min Read
  • Views
Firebase Cloud Messaging Everything You Need To Know


Google Cloud Messaging is not a new term for application development companies. Google launched GCM in June 2012. It was developed to deliver notification data or information from servers to applications and the web at zero cost. Google deprecated it on 10 April 2018 and finally removed the GCM server, and related client APIs on 29 May 2019. 

Google has now launched an improved push notification solution – Firebase Cloud Messaging. If you want to migrate from deprecated GCM to FCM and hire a firebase company for the same purpose, before that, let’s get an overview of FCM.


What is Firebase Cloud Messaging?


Firebase cloud messaging is a multi-platform messaging solution developed by Google that lets developers send messages to clients’ and user’s apps without any charge.

Firebase development companies utilize it to notify their client’s app about new data or email available for syn. FCM also provides an efficient way for better user engagement and retention by sending notification messages to the user app. 


Key Features of FCM


It can send notification messages and data messages.


FCM displays notification messages on users’ Apps, which in turn enhance user engagement and retention. It also data messages to the client app that defines what happens in the application code.


It uses versatile message targeting.


FCM uses three ways to distribute messages to client apps – individual devices, groups of devices, or particular subscribed topics. 


It can send messages from client apps.


FCM provides a reliable and battery-efficient connection channel to send confirmation, chat, and other messages from the app device back to the server.


Advantages of FCM


Sending a message to all devices


FCM establishes a reliable and battery-efficient connection between the app server and devices allowing developers to deliver and receive messages and notifications on Android, iOS, and the web at zero cost.


Allows advanced message distribution


FCM provides easy distribution of target messages with the help of predefined segments. It also allows developers to target users based on demographics and behavior. 


Support customization in the notification content


FCM allows delivering messages immediately or at a future time as per the user’s local time zone. It also allows transferring custom data, setting priorities, sounds, and expiration dates. It even enables tracking of the custom conversion events.


No extra coding required for pushing notifications


FCM notification messages are entirely integrated with Google Analytics which allows detailed engagement and conversion monitoring. Thus, providing an effective way of tracking from a single dashboard without extra programming.


Supports A/B testing for notification messages


It allows developers to test different notification messages and figure out which one works best to achieve its goals. This feature was built in partnership with Google Optimize (a web-based personalized A/B testing tool)


Know the Architecture of the FCM


FCM consists of the following components that create, deliver, and receive messages:


Notification composer: 


It provides GUI-based options for drafting notification requests. To ensure complete automation and support for all types of messages, Firebase development companies develop message requests in a secure environment compatible with Firebase Admin SDK or the FCM server protocols. For this purpose, Firebase cloud function, App Engine, or application server can be used.


FCM backend:

It, along with various functions, receives message requests, distributes messages through topics, and creates message metadata such as message IDs.


Platform-level transport layers: 


It channels the message to the target device, manages message delivery, and implements platform-specific configuration whenever required.

This transport layer comprises of:

Android transport layer (ATL) for Android devices with Google Play services

Apple Push Notification service (APNs) for iOS devices

Web push protocol for web apps


FCM SDK on the user’s device: 


To display messages on the device as per the app’s foreground/ background state or application logic.


Firebase Cloud Message types


Developers utilize FCM to send two types of messages:

Notification or display messages:

FCM displays such messages automatically on the end-user devices on behalf of the client app. They use a predefined set for user-visible keys and an optional data payload for custom key-value pairs.


Data messages: 


The client app is accountable for processing data messages. They use only custom key-value pairs that have no reserved key names.


Setting message priority with FCM


FCM offers two options for assigning delivery priority to downstream messages:

Normal priority:


It is the default priority for data messages. Such messages are sent immediately when the application is open in the foreground. There may be a delay in the delivery of such messages if the device is in sleep mode. Firebase app development services providers send less time-sensitive messages such as new email notifications, UI, and app data synchronization with this priority.


High priority:


Such messages are delivered immediately to the end-users device and can even wake a sleeping device when needed to operate limited processing (including limited network access). The objective of high-priority messages is to achieve user interaction with the application or notification.





FCM is a robust and scalable messaging service that delivers hundreds of billions of messages daily, with an impressive rate of 95% message being sent in 250 milliseconds. Its no cost and extensive features enable developers to experiment and analyze things. Its integration is simple and straightforward. However, it is wise to assign this task to an experienced firebase development service provider to ensure smooth integration.

Firebase Cloud Messaging (FCM) - Everything You Need To Know
Article Name
Firebase Cloud Messaging (FCM) - Everything You Need To Know
Understanding how Firebase and Firebase Cloud Messaging Platform can help developers to build apps, Everything You Need To Know.
Publisher Name
Publisher Logo


Digital Marketing Manager, @iWebServices: India's leading mobile and web app development company offering scalable mobility solutions to Startups and Enterprises.

firebase cloud messaging,  firebase cloud messaging android,  firebase cloud messaging pricing,  firebase development,  firebase development company,  firebase development services,  firebase messaging,  firebase messaging service   

You might also like

  • How Much Does It Cost to Develop a Dating App
    App Development,  app development agency,  app development company,  app development services,  app development software,  dating app development,  dating app development company,  dating app development services,  Mobile App Developers,  mobile app development company,  mobile app development services,  mobile application development company,  top app developers,  top mobile app development company   

    How Much Does It Cost to Develop a Dating App?

  • How to Develop Mobile Recharge Application in Android
    create own mobile recharge website,  develop online mobile recharge application,  hire recharge app developer,  mobile recharge app developer,  mobile recharge app development company,  mobile recharge application development,  mobile recharge software development company,  recharge app development,  recharge application development,  recharge portal development,  recharge software developer,  recharge software development company,  recharge website development   

    How to Develop Mobile Recharge Application in Android?

  • What is the best programming language to build mobile apps
    Android app development,  Android app development company,  app developers,  App Development,  app development agency,  app development companies,  app development services,  application development company,  hire mobile app developer,  Mobile App Developers,  mobile app development,  mobile app development company,  mobile app development services,  mobile application development,  mobile application development company,  mobile development,  top app developers,  top mobile app development company   

    What is the Best Programming Language to Build Mobile Apps?

Friendly team,
personal support

Write to us or pick up the phone, either way we are here to give you a hand.

Get in touch with us!
+1 646.846.4151 Mon - Fri : 9am EST – 5pm EST