@Nidutt you should be able to use NifI expression language in the flow to change date int to ISO timestamps. Here is a template you can use that shows many examples of timestamp formatting: https://github.com/steven-matison/NiFi-Templates/blob/master/Working_with_TimeStamps.xml I think you may find that nifi attributes remain strings in your flow without a strict date type, after all an ISO timestamp is really a string, your end point database just knows it is a "timestamp".... If this answer resolves your issue or allows you to move forward, please choose to ACCEPT this solution and close this topic. If you have further dialogue on this topic please comment here or feel free to private message me. If you have new questions related to your Use Case please create separate topic and feel free to tag me in your post. Thanks, Steven @ DFHZ
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