Hi!
I run into several problems when trying to post maps to AGOL in the projection I want, and/or to change the projection. I know I'm supposed to keep these posts to one question but they all go together in this case. I've found a few other posts about this, but they don't answer my questions.
I have found these directions but they don't work for me: https://community.esri.com/t5/arcgis-online-blog/changing-the-map-projection-in-arcgis-online/ba-p/1394175
1. I have tried adding a layer to AGOL and then using that as a basemap, but it never works. I add a shapefile to my content that is defined in the projection I want. I start a new, empty map in AGOL. I add the layer I want to use as my basemap, but the option to "Use as basemap" that I have seen in the tutorials never appears anywhere.
2. How do I find a url link that has the projection I want??? I have not been able to accomplish this either. I try to use localized projections whenever possible and they're the hardest to find. My standby is NAD UTM Zone 13N because many of my maps are focused on Colorado, but I have not been able to find a url that displays this. I have tried searching for specific projection names, I have looked for instructions on how to find them, but nothing.
3. I like to create my maps in Pro and then post them to AGOL when ready to share. I have created maps in which all of my layers are in the projection I want and the map displays as I want it to. But there are three problems: a) Pro won't let me share a map w/out a basemap. b) Pro won't let me share a map unless the projection of the basemap matches the projection of the layers. c) I cannot change the projection of the basemap.
Any advice is greatly appreciated!! Thank you!!
