How i can assign Null value to an Integer variable. currently i am getting this error "the variable of type integer cannot be set to null or empty value"

[johnjohn123]

I have the following action to initiate a variable inside my MS Flow :-

and an action to assign a value to this variable:-

But if calling the SQL stored procedure return null>> I will get this error on run-time:-

so how i can assign a null value to an integer variable ?

[PrasadAthalye]

Can you convert variable to string ?

[johnjohn123]

@PrasadAthalye  why i need to do so?

[PrasadAthalye]

Here is how I was able to set null value to Int variable... What is the response from procedure ? Is it null or empty string?