Mk 270

---
name: mk-270
description: "First-Party Audience Usability Check. Use when you need sources, purposes, permissions, and limitations; apply this method to the specified inputs and verify the deliverable"
---

# MK-270｜First-Party Audience Usability Check

For a regular chat, upload `packs/mk-270.md`; it includes the shared rules, this method, and required references

## Purpose

This Skill delivers: **Sources, purposes, permissions, and limitations**

Execution steps compiled by ThinkWithBlack for this method's stated purpose, 2026-10-21; the course outline and original sources are retained below

Views or clicks do not automatically stand in for sales; do not directly rank channels measured on different bases

## Required Inputs

List source/collection, disclosures and applicable consent records, intended use, withdrawal handling, data date and account capabilities

## Method Steps

1. Verify first-party collection; flag unknown or purchased sources
2. Check disclosure, applicable consent, purpose, withdrawals and freshness using deidentified summaries for analysis
3. Check current Customer Match policy/account capabilities and report eligible, pending or unsuitable with evidence; missing evidence cannot become an uploaded state

## Calculation and Interpretation

Customer Match requires first-party collection and applicable disclosure/consent, with restrictions including sensitive categories

Source: [Google: Customer Match policy](https://support.google.com/google-ads/answer/6299717?hl=en-AU)

## Required Output Fields

| Order | Field | How to complete |
|---:|---|---|
| 1 | List source | Use the supplied source, calculation, or explicit unknown |
| 2 | Collection/purpose evidence | Use the supplied source, calculation, or explicit unknown |
| 3 | Consent or applicable basis | Use the supplied source, calculation, or explicit unknown |
| 4 | Withdrawals and refresh | Use the supplied source, calculation, or explicit unknown |
| 5 | Policy/capability check | Use the supplied source, calculation, or explicit unknown |
| 6 | Eligibility state | Use the supplied source, calculation, or explicit unknown |
| 7 | Missing evidence | Use the supplied source, calculation, or explicit unknown |

## Verification Cases

**MK-270-A1 | An email list of unknown origin**

Expected: Pending, not upload-ready

**MK-270-A2 | A record shows withdrawal**

Expected: Exclude from that use with evidence

## Method Sources

Original file: AI × Google Ads Demand Gen・YouTube・PMax 實戰課｜三堂課程大綱

Source location: Demand Gen

Source basis: Extended from a course outline

Original URL: https://docs.google.com/document/d/1bX8e6O3-E7cXQSAQNN7MFJW5JpeJbiO3USgZZefjQrs/edit

English translation of source excerpt retained in the master table:

> AI × Google Ads Demand Gen・YouTube・PMax in Practice

### Additional Source Locations

Source verification record for the original course material

- Source code: DO
- Original location: Demand Gen
- Original outline evidence (English translation): AI × Google Ads Demand Gen・YouTube・PMax in Practice