How to Identify Resources in Bulk

Summary:

Currently Identify Resources is being done through resource directory manually. 

But customer have a bulk requirement of employees being tagged as resources and they do not have the time to do it one by one each.

We tried using import management, but it is failing as we cannot get the required attributes like "Profile ID".

Is this approach feasible? Are there any other methods suggest?

Content (please ensure you mask any confidential information):

Version (include the version you are using, if applicable):

Code Snippet (add any code snippets that support your topic, if applicable):