Let's say you have a model in ArcGIS Pro that you run regularly to clean/change some data, after which you share that layer to your Portal/AGOL. To share the result of this layer, you have to either do it manually (right click --> sharing --> overwrite web layer) after running your model, or you can create a Python script to do it and embed the script into your model. However, there is no simple, out-of-the-box "Overwrite Web Layer" tool that you can drag and drop into a model that will do it. This would be very useful for those of us that aren't great with Python and want overwrite a hosted feature layer from within ModelBuilder. arcgis - pro overwrite web layer modelbuilder
