i know this has already been asked on some forums like in https://discussions.vtiger.com/ and I already placed a question but I haven't received any answers and do a search on related questions but I don't seem to find a definite answer to this question. I'm actually creating a dynamic field which automatically computes the difference of the two fields.
To make it more clear, this is what I'm trying to achieve:
Using EXPRESSION:
Amount For Collection - Amount Collected
and the result must be the difference of the two which is the Unpaid Amount but when I apply this and try to put data on the fields and submit my form I end up in a white screen only but when I use MULTIPLICATION and DIVISION the form proceeds and it automatically computes.
Am I doing it the wrong way, can anyone here shed some way to fix this issue. I tried this in the older version and I don't encountered these errors on Addition and Substraction.
By the way I'm using the newest version Vtiger 7.1.0
Thank you so much for helping me out.
