SAP R/3 : Field Exit from Vijayendra Rao

I was searching the SDN forum on field exit for my latest attempt to modify SAP standard screen fields and I found one contribution from Vijay answering a question put forth by another ABAPer.

I find it is worth saving it up for later use so here is the particulars,

OSS NOTES: 29377

Vijay's explained that,

Field exits are frozen on the 4.6C maintenance level and are not further developed. This means that the existing functionality is kept with all restrictions (see also the last item below). Existing exits can be further used and are called at runtime as usual.Existing exits can be maintained using program RSMODPRF (run theprogram using transaction SE38).

more here

is sky the limit... field exit...