I have a request where a catalog user submits the request and it will go for first approval to a group.
Once that group approves the request, it should go back to a catalog user (Requestor). How can this be done in catalog?
1. If you are using PAM, to assign the approvals you should be able to simply pass the requested for userid as input to the assignPendingAction after the group approval has occurred.
2. If you are using Catalog policies for the approval assignment, then you would need to create a plugin to grab the requested for user via web services or SQL query and pass the same to the assignee list.
Regarding plugins for policies we recommend taking a look at 'How to Write and Use API Plug-ins for Policies' starting on page 417 of the Administration Guide.