Hi Scott,

Thanks for trying but didn't work unfortunately. I had another crack at it but in the end decided the that its really in the best interest of the company that developed the app to have a identity as the PK. Will just have to go through the experience of explaining why but it think its worth it for them and for me. There'll be some benefits for them in performance as well where this is used in joins if the do that and if they have that in one table it might be worth taking a look at the whole db and offering some suggestions for everyone's sake. Wanted to give it a go as I like a challenge.

Thanks,

Michael