Subscriber Data Management Procedure

[mknair]

Can any one share the procedure for subscriber data management in 4G and 5G network. I am specifically looking for how a new retail subscriber is added to the mobile network (Not the registration procedure, but how HSS/UDM/AUSF are updated, what data is being updated) based on the SIM card issued . Any reference to 3GPP Spec where this procedure is detailed

Thanks

MKN