What kind of enhancement is this (FORM USEREXIT_*), and how do I implement such an enhancement

Question

I have an include RV60AFZZ, and a form USEREXIT_NUMBER_RANGE.

On one system, this form contains an addition

*{   INSERT         ASDF555555                                      1
  "Custom code here...
  ....
*}   INSERT

...and in another system the form contains just 2 commented lines, with no *{ INSERT and *} INSERT

I want to know how to implement such an enhancement on my other system, or more noobishly : How to write code in that include that's not in the customer namespace?

Answer 1

If you by any chance work on a Netweaver system with an Enhancement package you could enhance this user exit form by using an implicit enhancement instead of requesting the object key to modify this subroutine.

Answer 2

This is not an enhancement, it's a modification. Avoid it at all costs, unless you really have no other choice. It's a road that leads straight to maintenance hell.

The pseudo-comments are generated by the Modification Assistant. You can turn it off, but prepare to get shot by your customers/colleagues for a very good reason if you do so. :-)