Batch Data Record Erase Field data no possible
I am doing a BDC in transaction IA05, in the characteristics definition the system puts the plant number value (PLMKB-QMTB_WERKS) for the method, but i need to delete this value because if this value exists and the method and version are initial, the system shows error message.
I am trying using ' ', space, an empty string variable but value is not erase. But if i insert a value into the field PLMKB-QMTB_WERKS the value is changed.
Somebody know How i can resolve this? Could be a customizing problem in QM Module?
I'm using SAP version ECC 6.0.
Thanks in Advance,