- First, in the automation flow, we request the client to provide their height and weight.

- Next, we save the client’s responses in the variables
payload.heightandpayload.weight.


- In Execute JavaScript, we use the variables
payload.heightandpayload.weightto calculate the client’s BMI and suggest the most appropriate size based on this information.

- Finally, the result of the code will be saved in the variable
payload.suggestedSize, which is sent to the client in the last message indicating the suggested size based on their height and weight.