Building Whatsapp Bulk Android For Playstore Integration Payment Gateway

I want to make an ultimate bulk whatsapp application with the support of several features

- MENU LOGIN USER FREE & PREMIUM PACKAGE
- MENU GROUP OR CAMPAIGN EXAMPLE CATEGORY TARGET LIST
- MENU CONTACT LIST IMPORT DATABASE TARGET OR DESTINATION BASED ON GROUP WHICH IS MADE
- IMPORT CONTACT MANUAL INPUT
- IMPORT CONTACT IN HANDPHONE INTEGRATION WA
- IMPORT TXT
- IMPORT MANUAL ( COPY PATE OR INPUT NUMBER )
- IMPORT CSV
- MENU SEND MESSAGE RELATED TO SEND MESSAGES FOR PURPOSE, SUPPORT CAPTION, SUPPORT MESSAGE TEXT, SUPPORT MEDIA MULTI IMAGE, SINGEL IMAGE, VIDIO, AUDIO, DOCUMENT ALL, DLL
- MENU SEND HISTORY WHATSAPP BULK
- MENU AUTOREPLY
- MENU SCHEDULE SEND WHATSAPP BULK
- MENU GROUP GRABBER ( TAKE A WHATSAPP NUMBER IN THE GROUP )
- MENU SUPER GROUP SENDER ( SEND MESSAGE IN GROUP WHATSAPP )
- MENU B2B LEAD EXTRACTOR ( SCRAPPING GETTING DATA ON GOOGLE MAP BY KEYWORD AND CITY OF ORIGIN ) RESULTS OF DATA OBTAINED CAN BE STORED IN GROUP OR EXPORT CSV, TXT, XLS
- MENU DIRECT MESSAGE
- MENU UNSUBSCRIBED TARGET CONTACT
this menu is there when we want to send a bulk whatsapp message to the target, and there is an option to check add option to unscribe
This menu functions for if the target does not want to receive the blast then they simply send an unsubscribe message then the message will not be sent again to that target, and the target data that refuses will be included in this list
- SETTING MENU ( daily limit set DELIVERY LIMIT PER DAY , one shot contact limit DELIVERY DISTRIBUTION OF THE NUMBER OF DELIVERY DAY )
- MENU CONTACT US INFORMASION DINAMIC INPUT IN PANEL ADMIN
- PREMIUM PURCHASE MENU INTEGRATION PAYMEND GATEWAY PLAYSTORE

for an example more or less like this and there are some additions, please look and try first for the features
example : https://play.google.com/store/apps/details?id=com.invotech.whatspromo&hl=id&gl=US

the app will be linked to playstore
with the main admin panel system which can manage the access rights of all systems. Besides that, the application can also provide reseller admin panel access rights which the main admin can set for a limited number of activations

for unit buyers, you can try using the demo first by logging in using a phone number and will get an OTP code with a specified limit and can be set by the admin panel

for full use, you can choose a 1 year and 3 year subscription package, where the user can buy the package directly and connect to the payment gateway

Buyers can also become referral affiliates to sell the application to their friends and get a commission for every 1 sale. and they can withdraw the results with a minimum sales limit.