Maintaining Infotypes in PP01 for Central Person while already maintained n

Dear Team,

When we are using PP01 Transaction code by taking Object type Central Person system is showing is showing IT0001, IT0002, IT0006 and IT0009 etc. Please let us know the purpose of using all these infotypes as we have already maintained the same in PA30 u2013 Maintain master data

Could you please suggest us whether to update these infotypes here or not and what are implication of the same if we maintain them again here?

Kind Regards

Nagesh