I am working through the guidance on this page which describes a method for reducing duplicate case registrations by introducing a validation in a label.
I followed the instructions (I think) and upon testing (on an android emulator, Bluestacks) I am not able to see the validation message, it just shows up as a blank page. Any idea what I am going wrong?
My only thought currently is that, the 3 variables I am using to build the validation are: first name (nome_prim), last name (nome_ult), and a patient ID number (nid_tarvcomp). The first two are Text questions which are filled by the user. However, the nid_tarvcomp variable is currently a hidden value that concatenates 7 separate string variables that the user fills. Could it be that this hidden variable is interrupting the validation?
Thanks for your help,