To integrate Active Directory with SNOW

Servicenow12
Tera Contributor

Need to insert a RITM for a specific catalog item when a Group is created in Active Directory using REST. What should be the steps for integration ?

Once a group is created in AD, after that only RITM should be inserted. I have created the catalog and workflow, but the trigger point is the AD group creation, How to achieve this ? Please advice as I am completely new to integration.