Hello Michael,In the ArcGIS.com Map Viewer under details you can hover your mouse over an item, click on the arrow and then get the option to move the layer up or down. If you are publishing a hosted feature service from ArcMap, the layers come in in the order they are published in. If each layer is a service from your ArcGIS Server, you should have the option above to move the layers up and down. Can you creating a new map, adding content, then trying to move multiple layers up and down?
Unfortunately, you can't order layers any way you want. Some layers are drawn as graphics by the browser, so they're always on top. Map Notes, shapefiles and CSVs added to the map, feature services all get drawn by the browser and will display over map services and wms services. You can order all the 'graphic layers' within the group of layers drawn by the browser and order the map services within the group of map services.Thanks,Mike
Is there a way to tell which layers will be drawn by the browser as graphics?
there's no way to tell by looking at the map; you need to know the source of the layer. The list of layer types I posted above are those that draw as graphics.
Mike
Hmmm... still having trouble with this. I am using a map service and I cannot move it down in the list in my ArcGIS Online Table of Contents. Here's the deal, when I add the service to my web map with the service URL of .../RecordDrawings/MapServer I can reorder the service in the map BUT the service gets "nested" (not sure what the right term is) and looks like this:
I want to avoid that mainly for cosmetic reasons. But when I add the same service with an added "/0" at the end (like this: .../RecordDrawings/MapServer/0) then the "nested" thing doesn't happen (which I like) but then I can't reorder it in my ArcGIS Online TOC. The "Move up" & "Move down" functionality disappears.
What is the difference between the service with the "/0" and the service without it? And why does that play a role in ordering? Any help would be greatly appreciated. Greatly confused (by something that's probably pretty simple to understand.)
The map service layer gets drawn differently depending on how you add it to the map.
If you add it without an index number for a layer (e.g., .../0) it means you are adding the map service and all sublayers inside the map service. In this case, when the map service layer is drawn, the map viewer of arcgis.com requests an image from the server of the layer. The server creates the image and returns it to the map viewer. The server is doing all of the work to draw the layer.
When you add a layer to a map with an index number (with the /0), you are now bypassing the the image drawing on the server. Instead, when the map viewer requests that individual layer from the map service, the server returns the actual coordinates of the features in the layer. The features are then drawn by the web browser (or other client) as graphic elements on a "graphics layer" of the browser. This graphics layer draws on top of everything and thus draws over any other map service layers drawn as images.
This post may help as well Who can make this  ESRI'S reply simple and easy to understand ?
While it describes the behavior of shapefiles, the same applies to map services drawn with an index number (effectively, you are drawing a map service as features).
Hope this helps.
This is yet another frustrating limitation of ArcGIS Online. I'd urge ESRI to find a creative solution. I shouldn't have to bend over backwards with my data to move a point file over top of the polygon file.
Hey Philip,
This is a feature that is being worked on for the next version of Map Viewer. Currently, you are limited in layer order depending on the layer type Tile layers on the bottom and feature layers above. The type of geometry (point or polygon) won't affect layer order.
For the time being, what are the layer types that you are working with? There are a few ways to get the layer order that you are looking for, but we are looking to make this easier in the future.
-Kelly
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