Step 1.
if arcpro folder is already registar with arcgis server, when you publish locator, your locator will NOT copy to arcgis server.
otherwise, if you publish from a un-registared folder, then your locator will be copy over to arcgis server.
see details here
enforce locator copy to arcgis server (911 locator)
Step 2.
if you want to registar a new folder with arcgis server, you will do following
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