In the IMG for Shift Planning, you define the suitability criteria to be used for selecting the employees available to be automatically assigned to a personnel requirement by the system.

Function modules provide the suitability criteria with the necessary data.

There are three function modules in the standard SAP system:

• Employment percentage (HRSP_HITLIST_EMPLOYMENT_PCT)
• Qualitative suitability (HRSP_HITLIST_QUALIF)
• Seniority (HRSP_HITLIST_SENIORITY)

If you require suitability criteria that are not provided in the standard SAP system, you can use a function module created with the Function Builder transaction (SE37) to define new criteria.