This article is relevant to merchants with 100% of their volume processed through Intelligent Acceptance (IA).
Once you've onboarded onto Intelligent Acceptance (IA), we keep a small fraction of your traffic untouched (known as the Control Group).
We use this Control Group to compare against the performance of the optimized transactions to prove IA's impact on your Acceptance Rate (AR) and revenue. This is true regardless of how much volume is processed through IA.
For more information about Intelligent Acceptance, see the Optimize your payments documentation.