Editing data for a FCA store day in RESA

Hi,

I need to know the below information.

Say I found some data was missing in RESA for a store day which is in FCA status.

Now if I enter data manually from RESA screen how data will flow to downstream like RMS and how it will go ?

I mean to will it create a direct POSU file for this new transaction and change RESA tables column values?

Thanks in advance.