Variables to test

Subject Lines:

  • Curiosity-driven vs. benefit-focused (e.g., “You’re in!” vs. “Save 20% Today”).

  • Personalisation (e.g., “Hey [First Name]” vs. no personalisation).

Email Content:

  • Long-form vs. short-form copy.

  • Storytelling vs. direct-to-the-point messaging.

CTA (Call-to-Action):

  • Button text (e.g., “Shop Now” vs. “Get Your Discount”).

  • Placement (e.g., above the fold vs. at the end of the email).

Design Elements:

  • Plain text vs. HTML design.

  • Image-heavy vs. minimal design.

Timing:

  • Send time (e.g., morning vs. evening).

  • Delay between emails.