Mk 250

---
name: mk-250
description: "Product Data Field Inventory. Use when you need gaps in required and commercially necessary fields; apply this method to the specified inputs and verify the deliverable"
---

# MK-250｜Product Data Field Inventory

For a regular chat, upload `packs/mk-250.md`; it includes the shared rules, this method, and required references

## Purpose

This Skill delivers: **Gaps in required and commercially necessary fields**

When IDs cannot be matched one-to-one, leave them unmatched rather than guess; do not invent a match rate without complete event samples

## Required Inputs

Provide: product Feed, actual website information, SKU performance, and disapproval messages

## Method Steps

1. Inventory at least the core product catalog fields id, title, description, availability, condition, price, sale_price, link, image_link, brand, and category
2. When using a Feed, retain available fields such as product categories, additional images, GTIN, and mobile links
3. Field values must come from actual product data; do not invent them just to pass catalog formatting

## Calculation and Interpretation

Use product data for specifications and prices; verify catalog fields and disapproval rules during production

## Required Output Fields

| Order | Field | How to fill it |
|---:|---|---|
| 1 | Product / variant | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 2 | IDs from each source | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 3 | Field | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 4 | Feed value | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 5 | Website value | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 6 | Update time | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 7 | Issue classification | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 8 | Correction location | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |
| 9 | Status | Original evidence, intermediate method result, or explicitly unknown; do not fabricate |

## Method Sources

Original file: Meta廣告學程 105 有轉換是業績擴大的開始

Source location: Products

Source basis: Derived from course material

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

English translation of source excerpt retained in the master table:

> From product planning to catalog ads and collections, improve performance through budget allocation