What type of duplicates? Assets, Users, Managed accounts?

We will need more information to better answer this question.

Assets are getting duplicate and so my managed systems is also getting duplicate

​@naidu_jsts The first thing you need to do is figure out why your assets are being duplicated. Most of the time, you are most likely scanning an asset that was already created either manually or with an API. When scanning, the reverse DNS in your environment might not be configured correctly, so the scan creates a duplicate of an already existing asset because the hostnames are different. With a scan, it will only bring the IP address as the name, but with an API, you are able to put the “real” name of the asset.

After you know why the duplication happens, you can start your cleanup, either by API, deleting every asset that has an “IP” as the hostname, or manually.

The only time I’ve seen a scan bring in via IP is when using IP discovery scan, when using Detailed Discovery Scan or even Discover Local accounts, I’ve had the machines come in with hostname’s. This is even true when scanning only via IP address. As long as your scan account has access to the machine’s it should be pulling in the correct information. But like you said there is some underlying issue that is causing the duplicate information to get brought in that would need to be resolved.