Regarding loading the data into ODS

Hi all,

I am having a sitaution where I had filled an ODS with data. Now few fields have to be added to the ODS for reporting purpose. I have added the fields. But I am having doubt in how to fill those fields alone in that ODS so that the data can be represented in the Reports on that ODS. Is there any prerequits and precautions that have to be taken????

Regards

YJ