Solution : https://service.sap.com/sap/support/notes/1109408 (SAP Service marketplace login required)
Key words :
badi implementation hrhap00_follow_up_se writes, ses change pointer table, badi implementation hrhap00_follow_up_se, classic badi hrhap00_follow_up, terms hrhap00_follow_up reason, relevant change pointer, search engine service, change pointer, implementation hrhap00_follow_up_se, ses search