Running Dynamics CRM 2011 rollout 3. Need to update millions of customer records periodically (delta updates). Using standard update (one by one) takes a few weeks. Also we don\
One of my client had exactly the same problem. He solved it by creating a custom ETL and doing parallelism attacking two front-end. The whole thing was made in C#. Nowaday, it could be possible with KingswaySoft or Scribe.