It is possible, if you have a device with dual SIM, that you want to have two WhatsApp accounts on the same mobile. The possibility of using this option depends on the type of equipment you have. Many manufacturers integrate a tool to have Applications dual, that is, to duplicate apps.
This is the case of Samsung, for example, which integrates DualMessenger, and allows you to log in to a second account in the apps of certain services, such as WhatsApp. In the case of Oneplus, the option is called Parallel applications; and in the case of Xiaomi, Cloned Apps.
In all cases this tool activated from the Settings menu. You have to enter the gear icon, go to the internal search engine, type the name of the function you want to locate and then activate the virtual switch. Then you have to follow the steps in each case and thus you will have the option to log in to two different accounts in the same mobile app.
In the event that this tool is not available, then you have to resort to third-party applications. There are several options available, among which are Parallel Space that in addition to enabling the possibility of duplicating apps, allows you to customize each one of them, as the user wishes. In this note you can find the step by step to activate this tool and some of the previously mentioned ones to have two WhatsApp accounts on the same mobile.