X_CSS_EVENT_MSG_CODE is a partially fixed lexicon with the following values:
Saved
Value
Displayed Value
SEEMI_EID_BIRTH Employee Birth Date (as defined on IEID)
SEEMI_ECT_BIRTH All Employee Contact’s Birthdays (as defined on IECT)
SEEMI_DHD_DESC Holiday dates (as defined Holiday Calendar – IDHC)
SEEMI_BOE_OPEN Election Open Date (as defined on IBEV)
SEEMI_BOE_CLOSE Election Close Date (as defined on IBEV)