Testing Corner: Which subject line was the champion?

Testing Corner: Which subject line was the champion?

Using time-sensitive subject lines is a go-to tactic for online retailers. But the formula for success may not be as simple as you think.

Take a look at this subject line test:

Subject line A:

Last chance to order for Valentine’s Day is this Wednesday, Order Now

Subject line B:

Only 48 hours to order for guaranteed Valentine’s Day delivery

Industry standards would suggest that subject line B would win: It uses a numeral and is shorter. But subject line A yielded 23% more sales.

Why do you think A beat B? Email your thoughts to craig@cdmginc.com

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