How to use this block or what is for?

I wanted to about this block. Use of this block

Try the search function!
There are lot of topics and also Tutorials about how to use Push Notifications!

I know , how to use push notification but I only want to know about this bock

it works same as database, you can store a data with tag on one signal and get that with this block.

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I don’t how we store data.
Any block example please…

A very good way to learn App Inventor or Kodular is to read the free Inventor’s Manual here in the AI2 free online eBook App Inventor 2 Book: Create Your Own Android Apps … the links are at the bottom of the Web page. The book ‘teaches’ users how to program with AI2 blocks.
There is a free programming course here Course In A Box and the aia files for the projects in the book are here: App Inventor 2 Book: Create Your Own Android Apps
How to do a lot of basic things with App Inventor are described here: How do you...? .

Also do the tutorials Tutorials for MIT App Inventor to learn the basics of App Inventor, then try something and follow the Top 5 Tips: How to learn App Inventor


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similar to other databases, send tag get tag, you can see them in blocks of push notification, similar to firebase.