How using the purchase conversion in Facebook instead of a name conversion goal impacts donor conversion.
Experiment ID: #11653
The Missionary Oblates of Mary Immaculate
Experiment Summary
Timeframe: 01/21/2019 - 02/04/2019
We have been running Facebook campaigns to acquire names and donors for the Missionary Oblates for the past two years. In this time, we have found that we are able to acquire names for the organization very effectively at a very low cost. That said, we haven’t been able to convert new names into donors as efficiently as we would hope.
All of our Facebook campaigns have been optimized based on a custom conversion we’ve set up based on a person signing up for the particular content offer. This method has worked well to grow email files through paid media, but in recent months we’ve been testing a different kind of conversion goal within Facebook to see if we can not only acquire new names for the organization, but acquire new donors more effectively. Using the purchase conversion in Facebook optimizes the campaign for purchases/donors instead of new names.
We rolled this purchase conversion out for the Missionary Oblates Lady of Lourdes acquisition campaign to see the impact on instant donor conversion.
Research Question
Will the purchase conversion increase instant donor conversion?
Design
C: Our Lady of Lourdes
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Results
| Treatment Name | Conv. Rate | Relative Difference | Confidence | |
|---|---|---|---|---|
| C: | Our Lady of Lourdes | 0.05% | ||
| T1: | Our Lady of Lourdes - Purchase Optimization | 0.13% | 157.1% | 100.0% |
This experiment has a required sample size of 8,748 in order to be valid. Since the experiment had a total sample size of 208,970, and the level of confidence is above 95% the experiment results are valid.
Flux Metrics Affected
The Flux Metrics analyze the three primary metrics that affect revenue (traffic, conversion rate, and average gift). This experiment produced the following results:
0% increase in traffic
× 157.1% increase in conversion rate
× 0% increase in average gift
Key Learnings
The purchase conversion helped increased instant donor conversion by 157%! This is a significant learning and shift in the way we will set up future acquisition campaigns. The purchase conversion allowed Facebook to optimize the campaign based on people who were making a donation. When someone would make a donation, it would tell Facebook to go find more people like the donor that just gave and target them. Because the purchase conversion optimized for purchasers/donors, instead of names, we did see a slight increase in the cost to acquire a name, but the benefit of increasing donations and revenue far exceeds that metric.