I get error message DB745 with EDIT ALV on a field type DEC?

Question

Hi,
I have an ALV which has a field type DEC.
The ALV is open for edit.
Once I put negative number in, I get the error message DB745.
This error is retrieved from SAP code and I do not see any reason why.
I checked the field cat and it looks fine (ref to a field type DEC).
I am using lcl_grid_event_receiver with method: handle_data_changed FOR
EVENT data_changed OF cl_gui_alv_grid.
In that method I get the error in er_data_changed->mt_protocol.
There is no problem to show negative data if it is saved in the database
as negative.
Can anyone throw ideas how to fix that?
Thanks,
Itay

Answer 1

If you simply check the domain WERT7, you'll see that the checkbox for "Sign" is <b>not</b> checked. Therefore negative numbers are <b>not</b> allowed.
Just because a field is decimal or currency does <b>not</b> mean that negatives are allowed.
Many times, the sign is handled by a separate debit/credit indicator field such as a field with a domain of SHKZG.
Rob
Message was edited by:
        Rob Burbank