I've encountered an issue when uploading a CSV to ArcGIS Online as a hosted table where if the field name exceeds X number of characters (I have not discovered this number yet), all data in that field is stripped out of the table.

I have managed to work around this by shortening field names before the upload process, but I would like to understand this issue better. Is this a known limitation of ArcGIS Online, or is this a new bug?

2 Answers 2


I found the solution to this--maximum character limit in a field in SQL is 31 characters, which is why ArcGIS Online very silently balks at any field with more than 31 characters in its name. Wish there was error handling for this.


I have the same issue with some columns inside a SQL Server database. I tend to use QGIS instead, because there isn't really another workaround strategy.

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