Does Cal Grant have its own correction process? Fafsa corrections?

I’ve read a few threads on here asking about corrections to Cal Grant information, for example regarding a school change or addition down the line. In all the cases, they point to a form on the Webgrants website where you can contact them about school changes and other corrections. Does that mean that corrections to the Fafsa are not enough? Or will even be ignored by Webgrants?