The Head of Department (HOD) approving limit for cash requests depends on the organization's policies. Typically, companies or institutions have financial approval hierarchies where:

HODs may approve cash requests up to a certain limit (e.g as contained in your Standard Operating Procedure ).

If it exceeds the limit set for the department, higher authorities (e.g., Finance Head, CEO, or Board) may need to approve amounts exceeding this limit.

Different expense categories (e.g., petty cash, travel expenses, project funds) might have different limits.

To navigate: 

Click on HR> HR Settings> Department> insert the departmental head name and set the limit.