Adding an attribute to Master data

Hi all,

I am on 3.5. I have added a z-attribute to 0MAT_PLANT, an existing master data infoobject. I added it, and then wrote a transfer rule in ABAP to fill it. However, a problem arises when I try to load it. I run a full load of 0mat_plant. It is successful (RC = 0), but no records are added or changed - which I guess makes sense because the data set I'm loading from R/3 hasn't changed. However, this resents a problem because my new attribute is not populating. How do I trigger a load that fill my new attribute?

Thanks.

Dave