DataLoading in QA system after Refresh !!

Hello Experts,

we had a refresh last week and now we need to full load data to QA system cubes. I am new to bw loading and needs to understand how this process works.

I have been told to delete old request and start full load, is it enough ? How to load full load data ? How to delete delta setups ? Do we need some update in ECC ? Is there any best practices or Checklist ? Please provide general step by step procedure, to load full data to DSO after Refresh (from ecc to bw).

Please share you knowledge and experience.

Many thanks in Advance.

Sunil