EDI 860 Inbound related

When you run R47131  EDI Inbound Purchase Order Create  in Change Mode (SYTPUR = 04  and SZCHGC= C )   will it  update in F4201/F4211 only those fields that were "requested to be change"    OR it will update/override values in other fields as well even if even no change  was requested for those 'other' fields for that line.

for example if we request change in the  Quantity Ordered only, it should change Extended Price and Extended Cost in F4211 and Order Amount, Total Cost in F4201 table, but will it change/override values in  any other field(s) as well ?  Again for the above example if payment terms kept as 'blank' in F47131/F47132 will it override/update a 'blank' payment term in F4201/F4211 for that line (where originally the payment term was 001).