Russ, Where are you getting the "id" in the Json for your operational layer? I have looked through all over to find the reference, its not in here http://mobilesampleserver.arcgisonline.com/ArcGIS/rest/services/TestData/RedPolygon_TestMap/FeatureServer/0 or in here in here http://mobilesampleserver.arcgisonline.com/ArcGIS/rest/services/TestData/RedPolygon_TestMap/FeatureServer/0?f=pjson I am trying to learn but with all the changes to arcgisonline and the json structure for the ios app I'm struggling. Will new documentation be released? { "operationalLayers": [{ "url": "http://mobilesampleserver.arcgisonline.com/ArcGIS/rest/services/TestData/RedPolygon_TestMap/FeatureServer/0", "id": "RedPolygon_TestMap_9385", "visibility": true, "opacity": 1, "mode": 1, "title": "RedPolygon_TestMap - Red Polygon", "popupInfo": { "title": "Red Polygon: {TestCharacter}", "fieldInfos": [
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