You need to add some things in sketchware 
● Project Id
● App Id
● Web api key
● Storage bucket id
(Note : if you not understand How to add this things You can simply search in youtube How to set-up Firebase for sketchware)

◆ Authentication : Need to access Email password Login no need to access anonymous Login

◆ Real time database : Only Start Real time data base and edit rules as par your requirement ( You can see video in youtube Simply Search How can setup firebase database Ruls)

◆ Storage : Only Start Storage and edit rules as par your requirement ( You can see video in youtube Simply Search How can setup firebase Storage Ruls)

◆ Cloud Messaging : Start Cloud Messaging and you can get Cloud Messaging Key 

How to get key you can follow this step : Open Firebase >> Open Tap setting icone >> Tap Project Setting >> and Scroll down And You can see Key.

This key need to add in this project
How to add follow this step : Open Project >> Open Add Notification Activity >> open on Create Activity >> And you can see String Name as (serverKey) Put Simply you key.

◆ If You have any questions regarding this you can contact me in telegram my Profile Link : https://t.me/mr_invisible_hacker and also Username : @mr_invisible_hacker.

Thank you very much (^_^)
Hope you can learn Lots off things in this project and keep smiling :)