Educational service reduces CPA by 50% and accelerates new member acquisition with Mirai

CPA (Cost Per Acquisition)

-50%

Number of new members

+30%

Reducing measurement omissions

Almost zero

Optimization Period

2 weeks

Pre-implementation Challenges

One online educational school was using TikTok advertising to attract students, but faced the following challenges:

  • Due to the impact of iOS14+, TikTok's standard Pixel device alone was unable to measure more than 30% of conversions.
  • The advertising algorithm was not able to take into account the "long consideration period" between the free trial and full membership registration.
  • CPAs were soaring, and the more the advertising budget expanded, the less efficient it became.

Mirai Solution

Full implementation of the server-side API (CAPI)

Transition from "browser-only measurement" to "server-side + browser hybrid measurement."

Offline conversion forwarding

After member registration, back-end data (phone and LINE conversions) is sent to the TikTok advertising manager in real time.

Signal Enhancement

We've created an environment where TikTok's advertising algorithm can learn who your "true valued customers" are.

Results

Just one month after implementing Mirai, the ad account learnings were optimized and we saw incredible improvements.

Dramatic performance improvement

With no missing data, TikTok's smart matching feature was able to demonstrate its inherent accuracy.

  • Measurement accuracy +35%
  • OCPX optimized speed 2x

Average CPA

¥1,850

Prev: ¥3,700

"The thing that surprised me the most about using Mirai was that the response to our ads improved the following week, even though we hadn't done anything. It made me realize how much data we had been throwing away up until then." — Operations Manager

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