The prerequisites of PMS is OM and PA is mandatory,
for business functions and other check below :-
HCM, Performance Management (Flexible) 01 - SAP Documentation
HCM, Performance Management (Predefined) 03 - SAP Documentation
check below once :-
Tcodes for PMS Basic Setting
OOHAP_BASIC Basic Appraisal Template Settings
OOHAP_CATEGORY Appraisal Category Settings
OOHAP_CAT_GROUP Category Group Settings
OOHAP_SETTINGS_PA PA: Settings
OOHAP_VALUE_TYPE Standard Value Lists
T codes for PMS Process
PHAP_ADMIN Administrator - Appraisal Document
PHAP_CATALOG Appraisal Template Catalog
PHAP_CHANGE Change Appraisal Document
PHAP_CREATE Create Appraisal
PHAP_PREPARE Prepare Appraisal Documents
PHAP_SEARCH Evaluate Appraisal Document
