Generally speaking, we don't have an out of the box plug-and-play integration offering for ERP and CRM systems.
At Intuo, we always take the role of the replica system, where we assume your ERP system is the one source of truth, containing all data (which includes, but is not limited to, employee data, who they report to, which department they work etc).
We have done several integrations with systems such as Workday, SAP, Salesforce, AFAS, etc. The most common implementation of such integration is either through a daily CSV of all necessary data that is uploaded to an SFTP server that has limited access for both parties (e.g. Intuo can be read-only). Intuo consumes this CSV file each night and imports new data and changes old.
If this solution is not an option, you can rely on our RESTful JSON API for a more advanced and customised implementation. An overview of our API endpoints can be found on https://apidocs.intuo.io/reference. In this case, your IT team builds a custom middleware solution that leverages our API to import new employees and other changes whenever a change is detected in your ERP/HRIS/CRM/...
We also offer support on these kind of API integrations (at cost), or have preferred 3rd party implementation partners who can support you with these implementations. For instructions on how to use the Intuo API, you can visit https://helpdesk.intuo.io/en/articles/618971-using-the-intuo-api.