The MMP after IDFA: what still binds an install
Probabilistic matching did not vanish. It got quieter, and easier to over-trust.
Caggan measurement studio
System Anchorcore trains marketers, analysts, and product leads to reconstruct mobile conversion paths after identifiers thinned out. We work in English, with United Kingdom media buying in mind.
“The SKAN module stopped us treating a coarse postback as if it were a user journey. We still disagree with one of their MMM caveats, but the install graph is finally honest.”
Priya N., performance lead, Manchester
Flagship
A nine-week studio for people who own paid mobile numbers. You map MMP events to finance, design geo-holdouts, and write an attribution memo a CFO can read without a glossary.
Informational fee: £1,890. Places are scheduled, not “limited-time”.
Not a tour of every vendor screen. A method for deciding which conversion you will defend.
Paid social still reports last-click wins that your finance file cannot see. In-app events fire twice because a deep link and a push campaign share a name. SKAdNetwork returns a value that looks precise and is not. We sit with that mess and rebuild a measurement desk you can keep after the course ends.
You leave with a written source-of-truth document, a test calendar, and language for saying “this channel did not cause that install” without sounding theatrical.
From the notes
Probabilistic matching did not vanish. It got quieter, and easier to over-trust.
A Yorkshire test that survived legal review and a stubborn media agency.