Hermant, I created a model with your 2 variables (model, color) and created 2 constraint rules. The first constraint rule has 2 SIMPLE conditions and looks like this:
conditions variable index operator type value --------------- ---------- ------- ----------- ------ ------- Simple model = value A Simple color = value Green color = value Grey This takes care of Model value A. The 2nd constraint rule has 2 SIMPLE conditions and looks like this: conditions variable index operator type value --------------- ---------- ------- ----------- ------ ------- Simple model = value B Simple color = value Red color = value White color = value Blue And that's it. If u select A you will get Red/White/Blue, B will give you Green. Grey, and C, not having a constraint rule will give you everything. Kevin [Non-text portions of this message have been removed]