Mk 031

---
name: mk-031
description: "Next needs of existing buyers. Use when the task requires testable hypotheses about a buyer's subsequent needs. Apply this method to the specified inputs and verify the deliverable"
---

# MK-031 | Next needs of existing buyers

For a regular chat, upload `packs/mk-031.md`. It includes the shared rules, this method, and required references

## Purpose

This skill delivers: **Testable hypotheses about a buyer's subsequent needs**

Hypotheses are useful but do not establish demographics or market share; do not fabricate interview content or customer experiences

## Required inputs

Provide: Product facts, existing customer data, surveys, or customer-service records

## Method

1. Start with the purchased role-marker product and work back to shared audience characteristics
2. Find follow-on products through two routes: other products needed by people with the same audience characteristics, or products extending the same product characteristics
3. Confirm needs first using real shopping carts, customer/community questions, and essential accessories in the industry, rather than guessing solely through ads

## Calculations and interpretation

Treat customer roles and motivations as hypotheses initially; do not establish someone's actual identity from a single purchase behavior

## Required output fields

| Order | Field | How to complete |
|---:|---|---|
| 1 | Hypothesized group | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |
| 2 | Buying/using role | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |
| 3 | Trigger situation | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |
| 4 | Tasks and concerns | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |
| 5 | Supporting clues | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |
| 6 | Counterexamples | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |
| 7 | Items to validate | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |
| 8 | Suitable message | Use source evidence, an intermediate method result, or an explicit unknown; do not invent information |

## Verification cases

**MK-031-C05 | An order contains maternity and baby products**

Expected: Do not immediately identify the buyer as a mother; separate the buying and using roles

**MK-031-C06 | Different clues support two situations**

Expected: Keep both candidates and request the data that would distinguish them

## Method sources

Source file: Meta廣告學程 105 有轉換是業績擴大的開始

Location: Role

Source basis: extracted from course materials

Source URL: https://docs.google.com/presentation/d/1RzfmYLhPsK23uxqxWbKji2-efsbJPGFs_tMzCRX56BM/edit

English translation of source excerpt:

> The purchase action automatically places the person in a "specific role"