However, keep surface scratches that are somewhat lower in the clearcoat, without penetrating the actual resist layer still visible. And if the foundation is visible, everything is meaningless anyway except painting.
What the polishing compound but is useful if you have a deeper scratch that goes up to the primer, the one however (but not with the included brush, but with a fine hair brush from the artists' materials) fills with a paint pen, then with the second clearcoat component turvy, you can achieve a pleasing result after sufficient drying, if you go over this loss with the polishing paste. Of course, the defect will be visible, but you can at least plan polish, so that it is no longer felt.