Field Validation issue
Hi
I want to make which product cased the loss filed to be required when reason won lost i= Product. I have put in my field validation but keep getting syntax error and cant see what I have done wrong.
[<ReasonWonLost>] ='Product' AND [<[<plWhich_product_caused_the_loss_ITAG>]>] IS NOT NULL
Any help gratefully recieved.
Many thanks
Paul