I'm curious if anyone knows how to use a map we already have on ArcMap Online within the Survey 123 platform? Or, if that's not possible another ESRI app that would have this functionality? The drop down with maps to choose from currently consists of basic base maps that are available anywhere, no option to upload a shop or use an existing online file. Thanks!
Found a community article. Please check if it helps.
Survey123 Tricks of the Trade: Configuring survey maps