Thank you … i already got similar help from Alekshi (support team) also … my issue resolved now … thank you everyone who responded soo quickly …

I have tried something like this which is not getting saved

Thank for all the reply will try them to be precise i already tried to achieve same with range but somehow did not work … Like Number should be > 5555555555 and < 9999999999 but as soon as i save its getting reset Secondly for developers can it be ad...