I'm running a script from a Notebook in Pro to update a couple of items. The description, terms, etc work, but I'm stuck on the thumbnail. Is it possible to use locally stored images, or images hosted on another server?
This is the code I use for the other parameters, e. g. the description:
from arcgis import GIS
gis = GIS("home")
desc = "this is a test"
test_item = gis.content.get('267cf15c2030453b94e6259822948fd6')
item_properties={"description":desc}
test_item.update(item_properties)
Parameter "thumbnailurl" won't work with either local nor hosted images.
Reference: https://developers.arcgis.com/rest/users-groups-and-items/common-parameters.htm