In Vtiger, if you want to update a field by using an equation you are more likely to need to refresh your window in order to see the updated field. This is something our client did not want to endure, he wanted to have a function that will update the field if any of the variables changes quantity. The update needs to happen automatically and without the need to refresh the window to see it take place. Our team took on this challenge and was able to deliver this function, and now the client is able to see field updated in Vtiger if any of the variables in the equation changes values.
This is helpful and productive, since you are now cutting a step on the process if you are work with fields in Vtiger that function with the help of an equation. You will now be able to see the field being updated instantly in Vtiger without needing to refresh your window.