Hi Ana,
The KONV table in ECC 6.0 has a datatype that is not supported by DS or IS, we had the issue even importing the metadata to DS 4.2,
What we end up doing is, in DEV, we changed the data type for field KONV.KAQTY data type DF34_DEC (which is not supported by DataServices) to decimel point, than we imported the table. After that when you move the code to QA and PRD, it works just fine.
Here is SAP Note 1751486
Regards,
Vladimir