How to enhance a standard Transaction, to add a Parameter ID to one of the field in one screen?

Question

Transaction MB1A

That is the field I am interested in.

When I analyze the field, it has no Parameter ID

However I'd like to be able to call this transaction and for that field to be automatically set. I have done this in the past like this:

set parameter id 'WRK' field mv_werks.
      call transaction 'MB1A'.

But there is no parameter ID in this case. So can I set a Parameter ID, or is there any workaround? Could I perhaps call the transaction in another way than with call transaction ?

Answer 1

If you put an enhancement in subroutine

transaktions_init

of include

MM07MFT0_TRANSAKTIONS_INIT

You can pull in the parameter ID you want and populate the field:

RM07M-WERKS

You could use either an implicit enhancement or there are several explicit enhancement points in that subroutine.

Answer 2

Take a look at the documentation of CALL TRANSACTION … USING … - there's a complete code sample in there.