Problem 1
Can’t change java date string to ArcGis date field
Solution
Add transformer DateTimeConverter to change the date
@DateTimeFormat(@DateTimeNow(), %Y-%m-%d)
Problem 1
Problem 2
ArcGIS Portal Feature Service Writer: Encountered an unexpected error. The error code from the server was '500' and the message was: 'JSONObject["globalId"] not found.'. Details: ''
Solution 2
when creating writer of the feature layer, please use the Global id
Problem 3
Add CRCCalculator transformer if the source data has no real unique id
Solution 3
