This guide is built for senior operators who need to act fast in 2026. Each chapter ends with a "what to do this week" callout, and every claim is sourced -- internal Dcrayon engagement data, named vendor reports, or industry benchmarks. No fluff, no vendor promo.

1. The 2026 attribution reality
2. SKAdNetwork 5: the upgraded postback
3. GTM server-side container: setup + container types
4. Meta CAPI deduplication
5. Google Enhanced Conversions
6. Conversion modeling in GA4: how it works, when to trust it
7. MMM + experimentation as the truth layer
8. About Dcrayon + next step

Who this is for

Founders, CMOs, VPs of Marketing, agency leads, and senior operators working on programs scoped above Rs 25 lakh per quarter. If you are evaluating Dcrayon for a 2026 program, this is the reference document for the conversation.

How to use it

Skim the table of contents above. Jump to the chapter most relevant to the gap you are working on. Bring screenshots, raw numbers, or your last Dcrayon Score readout to the scoping call -- this guide will not replace the conversation, but it will sharpen the questions you bring.

iOS Attribution After 18: Server-Side Tracking + Conversion Modeling ships as a designed PDF with diagrams and worksheets. Request the download via the form on the right; we email it inside one business day.

Table of contents

Who this is for

How to use it

iOS Attribution After 18: Server-Side Tracking + Conversion Modeling

Read the full guide