Hi @niveditakumari ,

Start with :ServiceNow Workday integration brings true self-service to your employees which has steps .

1. The out of the box HR Service Delivery with Workday product. This one is more a plug-n-play product from ServiceNow HRSD offering. It is powered by Workday Spoke under the hood. So, definitely, check out this product first and see if that fits into your use cases:

https://docs.servicenow.com/bundle/paris-hr-service-delivery/page/product/human-resources/concept/w-integration.html

2. Workday Spoke: It supports bi-directional integration, using both real time webhook and polling. It provides quite a handful of OOB actions to address many popular use cases. You may or may not notice that real time webhook setup is complicated in Workday. It requires both the business process and Workday Studio setup to trigger off real time event from Workday to ServiceNow. On the other hand, polling is easier but you'll have to play with updated_from, updated_to, effective_from, and effective_to timestamp carefully to address the HR events timing, such as future dated transaction, data correct transaction. Overall, this Spoke supports all of these above but it's expected that the customer has some Workday integration experience to customize this Spoke. This angle offers you the max flexibility, but of course, takes you more time to configure, comparing with #1 option above.

In the Workday HR Spoke, we only have Webhooks that support:

1. bringing the users created from Workday into ServiceNow, 

2. Updating terminated users from Workday into ServiceNow.

3. Updating Leave of Absence details from Workday into ServiceNow.

Currently there is no flow, API or action which will sync changes made in Workday to Workers/Users in ServiceNow. 

3. Hybrid of #1 and 2: You can always get #1 offering to cover like 70% of your requirements and customize the rest of the 30% by extending the Workday Spoke under the hood of the HRSD application, depending on your requirements. This way, you have the best breed of both worlds and accelerate the time to market. 

Mark my answer correct & Helpful, if Applicable.

Thanks,

Sandeep