Hi,
I assume this is for Indian Payroll.
You can check with PC00_M99_DLGA20 for cumulation classes 24, 25 & 27 and check the wage types which are ticked for these cumulation classes.
CCL 24 - Regular Income
CCL 25 - Irregular Income
CCL 27 - Annual Perk
(Also check with CCL 31 & 30).
regards,
Bala.