How to use Tables in Characteristics Created for DMS Module

Hi Experts

Please advice, how can I use Data from Tables as input to End user while creating a Characteristics.

II have tried using "Values - Other Values Check" Tab while creating characteristics, but everytime while choosing table, system is throwing an Error that "Check Table xxxxx has too may key fields".

I want to provide option of selecting Cost Centre and Profit Centre to end user. I have tried to use Table (m_PRCTN, M_KOSTN,CSKT). Please help !! .

Regards

Prashant