PUM cumstomized change package

Hello,

We are looking at applying a PUM image to our HR and Finance environments. We have customizations that will need to be incorporated into the change package. In the past we have always had our change package which was created from PUM, then we would have a secondary Retrofit project which included our customizations incorporated into the PUM impacted customized objects. When performing this kind of patching, we always need to first apply the PUM change package then after migrate the retrofit project to bring our merged customizations into the environment. A lot of the reading I am doing about