Q: I came across a very interesting appeal from UNICEF: “Make one gift to save a child’s life…and we’ll never ask for another gift again.” Great way to get an envelope opened. However, upon taking a closer look at the package I discovered that the donor had to check a very small box”( ) This will be my only gift. Please do not ask me for another donation again.” in order to opt out. How did this appeal work? How many people opted out?

February 20, 2020      Kiki Koutmeridou, Chief Behavioral Scientist, DonorVoice

It sounds like UNICEF executed, in a cheeky way, what SmileTrain did in a very transparent way.

In 2015, just like UNICEF, SmileTrain sent out a pack with the promise of not asking for another gift again if you gave this once. Same concept and OE/letter message. But, unlike UNICEF, SmileTrain explicitly asked those who made a gift to choose from the following options:

  • do not mail me in the future asking for donations
  • send me only a limited number of future mailings
  • continue to mail me

People had to select one of the three options and the ask was visible, not hidden. This “once and done” mailing doubled donations with just 38% of donors asking to never be emailed again. So a win-win situation.

There are different hypotheses why this appeal works:

1. it removes any social pressure people feel from repeated charitable asks. Those who are averse to repeated asks from the same org find this solicitation appealing as it gives them an option to opt-out from future intrusions.

2. The “once and done” message yields the control to the supporter which signals the charity’s trust or generosity which is then reciprocated by the supporter

3. As you mentioned, it’s an unusual and unexpected message that triggers our curiosity and increases engagement. If more people open the letter, more people might give.

You can read the whole study here

I haven’t seen UNICEF’s execution but from what you say they only asked people to opt-out and made that ask very hard to find (the cheeky bit in their execution). We know that even when the opt-out ask is visible a low number of people tick the box, much less when it’s in small font. I don’t have access to UNICEF’s data to know how many opted-out but based on their execution, I suspect an even lower % than the SmileTrain.