Master & Slave app for Grocery

I am New to MIT App but it's very nice to make App's in it and also very easy to do for new commers untrained person like me...

I would like to develop an app for the Milk Man as daily he drop Milk , Bread and Eggs on door , and there's no any acknowledgement for the same...
My plan is to make Two way Communication App so that, when the wander keeps the Milk and other things at door... We should acknowledge the same and weekly or monthly Total should be done...

As I have the Concept but don't know how to make it work...

All your help will be appreciable in advance...
M. K. Butan
[mod edit: personal information removed]

You will need an online database to hold data for customers, products, orders, accounts, deliveries & communications. You will need to create a delivery app and an app for customers to use, that access the database. (The above is easier said than done!)

I recommend you start with something simple, and build from there.

Because you are new to App Inventor:

Here are some resources to help you learn to use the AI2 tools A very good way to learn App Inventor is to read the free Inventor’s Manual here in the AI2 free online eBook … 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 and the aia files for the projects in the book are here:

How to do a lot of basic things with App Inventor are described here: .

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