FallBack Message storing

I have scenario that I have added some FAQ questions , if user asks a question it is not found in FAQ means that time fallback will be triggered on that time i need capture the users id username and the last message which typed by user need to pass it in API. How can I take that value userid,username and lastmessage parameters

Hi @vithyabarathi_Ganesh,

How can I capture the users id, username and the last message?

At the Beginning of the bot flow, You can ask these inputs to the user and can store these details on the Global Variables.

Then on the Fallback Flow, You can hit the required API with all the required user details, by making use of the same Global Variables.

If you want to know more about the variable types which are used in Yellow Platform, You can refer this document.