Company code : A company code is a unique four-character alphanumeric code that represents a legally independent enterprise.
Personnel area : A personnel area is a subunit of company code. It is identified as an organizational unit representing an area in an enterprise, which is organized according to personnel administration, time management, and payroll accounting criteria. It is represented as a four-character alphanumeric code. For example, the personnel area code for corporation is CORP.
Personnel subarea : A personnel subarea is a part of personnel area, which can be subdivided according to the geographical location or the strategic line of business. It is represented as a four-character alphanumeric code. For example, if the branches or locations of an organization are defined as personnel area, then its departments, such as HR and ADMIN, are the personnel subareas of the organization.