Add to cart, validate custom line item field using rules

Hi all,

I am trying to compare a field in the custom line item i created against a field in the product display using Rules

I have tried creating a new rule and used " Before adding a product to the cart" as event but when i try to set the condition, "Entity has field" , i cannot find Node listed there..

Is there any way to do this?


Posted: Jul 30, 2013