Message: ArcGIS Online Feature Service Writer: 'addResults' error for a feature in 'LAYER NAME'. The error code from the server was '1000' and the message was: 'Arithmetic overflow error converting expression to data type nvarchar.
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ArcGIS Online Error
Best answer by runneals
Solution: A field is not being converted to the proper datatype (in this case a varchar). Use a StringFormatter to convert it to the type.
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