Problem with numbering of general task lists by creation thru LSMW - (IA05)

Question

I'm using a sequencial file to create general task list thru LSMW (Object 0490 which corresponds to TCode IA05).
The numbering range for general task list groups is internal. I executed batch input and it works pretty well with the first general task list group, but every next fails, because the number of the previousy created task list stays in the user buffer and apears in the PLNNR field, so the system assumes I'm trying to create a new group counter instead of new general task list group.
I explicitely set IBIPTLST-PLNNR = '' in field mapping - still the same problem. I also set user parameter PLN to be empty in SU3 and still no luck. I even turned off the historic data in local data tab of SAPGui, but the problem persist.
Can anyone tell me how can I achieve it without changing the numbering range to external?

Answer 1

Hi,
From IBIP Help:
Initial fields
As a general rule, initial fields in structures are not transported into the corresponding screen field. In other words, fields that are blank are ignored. If you explicitly want to reset a field to the value "<blank>", you must mark the field in the batch input structure with the value !. This is the reset indicator, and means that a field is to be reset to its initial value.
Try setting IBIPTLST-PLNNR to !
-Paul