You are sharing a web layer that includes one or more statistics based on the attachment table, which is not supported on ArcGIS Online. This can occur if you add related record statistics for the attachment table in a Fields element.
When multiple warnings are detected in a single layer, they are grouped into one primary warning.
Solutions
Do one of the following:
- Open the Configure Pop-ups pane for the layer and change the Fields element to not include related record statistics based on the attachment table.
- Do nothing. The related record statistic appears to not have any values when viewed in ArcGIS Online.
Additional information
For more information, see Configure pop-ups and Analyze your GIS resource.