i want to add otp based authentication for my mobile application

i just started with outsystem since last week and I want to add otp based sign-in feature for my users please help me with step-by-step guid. 

Hi Rahul,

Welcome to the OutSystems community. 

Regarding your question on one-time-passwords, there are older posts:

There are also Forge components

But before you start to have a look at the above links, I would advise you to follow one of the guided paths on the OutSystems learn site. This will really accelerate your OutSystems knowledge and your ability to develop OutSystems applications.

Regards,

Daniel