Hi Maren,
To elaborate what Sid clearly showed on ECC part of HCM Data,
ECC got INfFOTYPES which are DYNPROs with screen fields , logic & OK Code.
So you need to go to SE16 - Table - PA0002 and check what fields are filled so that they in turn fed in your UI App.
In your screen grab - PERSONAL DATA in ECC Table : PA0002 & BANK DATA in ECC Table : PA0009 , check which fields are maintained, you can get your query solved.
Rohit.S