In Single Level approval, many times Customers want to mark some specific requests to HR directly instead of Employee's Reporting Managers. This is generally required when employee submit a request to change/update his/her Personal Details i.e. Name, Address, Contact, Account Details,Family Details etc. In that case Customer needs to disable Reporting Head approval for General Details module.
To do the same login in ESS with System User, go to Settings -> Manage Approvers:
This will open you below approver setting page. Here un-tick Reporting Head and check mark on HR users only under General Details module. At last save the settings.
Now when employee applies any request from General/Personal Details section, it will never go to Reporting Head for the approval. Instead it will be mark to HR directly.
This approval settings can be enabled or disabled for any modules of ESS i.e. General Details, Regularize Attendance, Leave, Tour, Resignation etc. You can configure it as per your requirement.