Hi Sumit!
If you have sync enabled and configured in your Web-Service connector, the writeback will occur automatically via the sync functionality. If this OOB case doesn’t seem to work for you, I’d suggest you configure a workflow:
There is no OOTB trigger no, but there is an Event Trigger: “Account Aggregation Completed” that you can use to trigger a workflow.
Using this trigger you could simply configure a HTTP request within the workflow to writeback whatever it is you want to your end system.
Subscribe to the Event trigger and in the integration URL you simply use the url for executing your specific workflow like this:
https:/tenant.api.identitynow.com/beta/workflows/execute/external/<id>
Use the “External trigger” in the workflow.
For more information, check out this post by Colin, just alter the workflow to your specific use-case and your specific trigger required.
Cheers,
Seb