Does field have to appear on layout
I have a field in my system which I call in order to use the string in a calculation. At the moment i have it hiding on an end user layout under a debug screen. However I am in the process of tidying up my solution and removed it from the layout.
Once I had done this the calculation would no longer work, even though there was no change to the way in which the field was called.
Does this mean that this type of field must be shown on the layout?