Thanks for replying, Mathias.
We are not sure why the dependents are not showing up. We have the BAdi (hrbenus_b_aca_covind) working fine, and when I set breakpoints to check before modification, I notice the table ct_covind only has the employee in it and not the expected dependents. We can of course correct with the BAdi, but the manually additions is not a easy proposition to suggests to our HR group which would be filling the Excel sheets, which the BAdi reads, with thousands of corrections.