topic Cannot view layer with heat map symbology on ArcGIS Online or web app in ArcGIS Online Questions https://community.esri.com/t5/arcgis-online-questions/cannot-view-layer-with-heat-map-symbology-on/m-p/1061397#M40244 <P>I have a layer connected via ArcGIS REST services API and I changed the symbology to heat map in ArcGIS Pro, but I can't share a layer that I can view within ArcGIS Online. And I cannot change the symbology to heat map in ArcGIS Online.</P><P>Why is this happening? And how can I fix it?</P><P>Appreciate any assistance!</P> Tue, 25 May 2021 18:06:20 GMT GISLearner 2021-05-25T18:06:20Z Cannot view layer with heat map symbology on ArcGIS Online or web app https://community.esri.com/t5/arcgis-online-questions/cannot-view-layer-with-heat-map-symbology-on/m-p/1061397#M40244 <P>I have a layer connected via ArcGIS REST services API and I changed the symbology to heat map in ArcGIS Pro, but I can't share a layer that I can view within ArcGIS Online. And I cannot change the symbology to heat map in ArcGIS Online.</P><P>Why is this happening? And how can I fix it?</P><P>Appreciate any assistance!</P> Tue, 25 May 2021 18:06:20 GMT https://community.esri.com/t5/arcgis-online-questions/cannot-view-layer-with-heat-map-symbology-on/m-p/1061397#M40244 GISLearner 2021-05-25T18:06:20Z