How to operate two Whatsapp accounts on the same phone

When you download and install Whatsapp into your smartphone, you can
use only one account (or number) at any given time on the app. You can
change your phone number on the same account or delete the account (to
set up a new account with another number).

To use 2 Whatsapp accounts on the same phone, download and install
"Dual Space - multiple accounts" into your smartphone. The app allows
you to clone Whatsapp, Facebook, Instagram,etc so you can have 2
copies of each app on your phone. Open the app, tap "Whatsapp" and
wait for Whatsapp to be cloned and opened. Follow the usual procedure
for setting up a new Whatsapp account ( opening the Dual Space
Whatsapp, entering a new phone number, entering the verification code
sent to the phone number,etc).

Your 1st Whatsapp account can be accessed on Whatsapp and your 2nd
account on Dual Space's Whatsapp.

NOTE: Your Whatsapp SIM can be in another phone (for
calls,messages,etc) without affecting your Whatsapp account use on
your smartphone. You can use any SIM's data to operate the Whatsapp
account .