1. I have an expression in my top level assembly called "Tail Pulley Diameter" with a value.
2. I have a part in that assembly with a sketch. I created a global variable in that part called "Tail Pulley Diameter" and for the Value/Equation column, with my assembly open, I selected the "tail pulley diameter" value in my top level assembly.
3. When I open the part, I get an out of context message.
What might I be missing?