The UPRN will only be shown where the address is an exact match for what is in the GMS module of Uniform. In practical terms the strike rate is very low. However, this is not necessarily a bad thing because you will find that applicants frequently select the wrong address and so it is good practice for your admin/validation staff to check addresses. You'll also get some very long winded or inaccurate descriptions of development that will need to be changed too. We've used the connector for several years and it's fine for downloading the applications, but it doesn't completely automate the process. I've not had any problems with applications failing to connect to Uniform - we do get the odd error report which I generally put down to a glitch in Internet connectivity.
