Using Subject Line Optimization in the Design Editor

Important: Effective June 12, 2025, Oracle Eloqua's Advanced Intelligence (AI) features are available for all customers. To enable Eloqua's classic and Generative AI (Gen AI) functionality, open a service request with Oracle Support. Please review our product notice for more information.

Using the data of previous subject lines, Oracle Eloqua predicts if your latest subject line will be Good or Poor for your instance, giving you the insight to optimize subject lines before sending emails. Subject Line Optimization provides a predicted open rate percentage as well. Learn more about Subject Line Optimization.

To see what Subject Line Optimization predicts for a subject line:

  1. In the Design Editor, click Number 1 to go into Email Settings.
  2. In the Subject Line text box, type in your subject line.
  3. Click Predict .

    The Subject Line Optimization button

  4. A Good or Poor score will appear.

    The Subject Line Optimization open rate score

  5. Click the badge to see the predicted open rate.

    The Subject Line Optimization Predicted Open Rate

Learn more

Subject Line Optimization overview

Oracle Eloqua Advanced Intelligence Cloud Service

Subject Line Optimization mechanics

Using Subject Line Optimization in the Source Editor