Marketplace Feed Doctor

MARKETPLACE FEED DOCTOR · ASYNC IMPORT RESCUE

Stop broken listings
before they go live.

Amazon variation error, Shopify CSV rejection or eBay bulk-listing failure? Send the source file and processing report. Receive a diagnosed, corrected and rollback-safe import pack without a meeting or store access.

Check my CSV free See a live failed import Get a human fix from $29
  • Runs in your browser
  • No account
  • No product data upload
  • Export before publishing
CATALOG PREFLIGHTSUPPLIER-BATCH.CSV
61%IMPORT READINESS
3 blockers found
Row 18 · Duplicate SKUSKU MUG-BLK-S already appears on row 4BLOCK
Row 31 · Variant loss riskParent group is missing two existing optionsREVIEW
Rollback snapshotOriginal 100 rows preserved before any fixREADY
OUTPUTChange plan + safe export

ONE FILE · FIVE FAILURE MODES

Your spreadsheet is not ready just because it opens.

MerchLint translates marketplace documentation and recurring seller failures into a deterministic preflight. It identifies the row, explains the risk and preserves the original before proposing a change.

SHOPIFYSilent variant lossDetect incomplete variant groups before an import replaces existing definitions.
AMAZONFeed suppressionFlag missing brand, GTIN, parentage and over-limit seller SKUs.
EBAYVariation mismatchCatch missing item specifics, category gaps and unsafe image URLs.
ETSYBulk-edit damageReview tags, materials, variation values and image coverage before API writeback.
WALMARTFeed rejectionCheck product IDs, brand, taxonomy and required logistics facts before upload.

FREE INSTANT CSV CHECK

Know what will break before you import.

Choose a supplier CSV with up to 100 rows. MerchLint checks it locally in your browser and immediately estimates import readiness, duplicate SKUs, missing required facts, variant risks and image problems.

  • No account
  • No server upload
  • No store connection
  • Results in seconds
TARGET MARKETPLACE
No file selected.

PRE-PUBLISH CHECK

0/100

Add product facts to begin.
  • Required fields have not been checked.
LP

Your marketplace pack appears here.

Load the demo or enter real product facts. MerchLint will adapt the same verified facts to each platform without publishing anything.

EXPORT

Keep control of the final publish.

Blocked rows are excluded from the Shopify import-ready file and retained in the review worksheet.

PAY FOR A WORKING FILE

Start automatically. Escalate only when the feed is genuinely difficult.

Every paid rescue includes the diagnosis, corrected import CSV, change log and rollback copy. Human services are asynchronous and require no meeting or store credentials.

FREE

$0

10 rows per file
  • All marketplace drafts
  • Readiness checks
  • CSV exports
Use free

AUTOMATIC FIX

$9 once

Up to 100 supplier rows
  • Deterministic error diagnosis
  • Corrected CSV, change plan and rollback copy
  • Best for clean, well-formed source files
Run automatic fix

HUMAN FEED RESCUE

$29 once

Up to 100 rows
  • Human review of platform error reports
  • Parent/child, variation and image-map repair
  • Returned within 24 hours or refunded
Choose human rescue

COMPLEX VARIANT RESCUE

$79 once

Up to 500 rows
  • Complex parent/child and multi-option repair
  • Processing-report diagnosis and corrected feed
  • One clarification round included
Fix a complex feed

AGENCY

$49 / month

Multi-client workflow
  • Up to 20 feed checks each month
  • Branded diagnostic reports
  • Priority human escalation
Join agency plan

ALREADY PURCHASED?

Activate your MerchLint license

Paste the license key shown by Creem or sent to your purchase email.

Current plan: Free · 10 rows per file

Secure checkout: payments and license delivery are handled by Creem. MerchLint never receives your card details.

COMPLETE DELIVERY EXAMPLE

Inspect the files before you buy.

This example starts with an intentionally messy supplier sheet and shows the four artifacts returned in the 24-hour cleanup. No screenshots or unverifiable claims.

01Raw supplier CSVDuplicate SKU, missing option and inconsistent image names 02Validation reportBlocked rows, review reasons and safe-fix guidance 03Shopify import CSVNormalized handles, variants, prices and image links 04Image mapping planSource image, target filename, SKU and display order
01

Normalize

Map inconsistent supplier headers into one controlled schema.

02

Group

Rebuild parent products and variants without silently merging SKUs.

03

Block errors

Catch duplicate SKUs, missing attributes, WebP or expiring image URLs, same-color image conflicts and category gaps.

04

Export

Review the generated pack, then publish through the marketplace you control.

MORE THAN A PRODUCT PHOTO

A listing is a structured sales record.

MerchLint uses the image only as product context. The actual deliverable is the complete information pack a seller must review before publishing.

01Search-ready copy

Platform-length title, benefit bullets, description and backend search terms.

02Catalog structure

Category, attributes, materials, size, color, SKU, barcode and inventory.

03Commercial checks

Price, unit cost, gross margin, missing fields and unsupported claims.

04Publishable files

Shopify draft import CSV plus Etsy, Amazon and eBay review worksheets.

TESTED WORKFLOWS

See the mess become a listing pack.

These are transparent demonstration cases built from fictional supplier data. No customer results are implied.

Unbranded matte black insulated travel mug used in the MerchLint demonstration DEMO CASE 01

ONE PRODUCT · FOUR MARKETPLACES

From a vague mug record to a review-ready pack.

RAW SUPPLIER ROW20OZ CUP BLK | steel | vacuum | lid | $29
BEFORE42quality score
AFTER100quality score
OUTPUT4marketplace drafts
Shopify title

Northline Insulated Stainless Steel Travel Mug 20 oz Matte Black

SEO metadata

70-character SEO title plus a structured meta description.

Amazon bullets

Five fact-based benefit bullets and backend search terms.

Catalog fields

SKU, GTIN, material, color, capacity, inventory and price.

Etsy discovery

140-character title, 13 tag opportunities and attributes.

eBay specifics

80-character title plus brand, type, color, size and material.

Unbranded beige canvas weekender bag used in the MerchLint batch demonstration DEMO CASE 02

SUPPLIER CSV · BATCH EXPORT

Turn inconsistent catalog rows into one controlled worksheet.

COMMON PROBLEMS FOUNDmissing GTIN · weak keywords · no care note · uneven category names
INPUT2sample CSV rows
CHECKS8field and margin gates
EXPORT1review worksheet
  • Normalizes common supplier headers into a consistent product record.
  • Flags missing attributes before an import creates cleanup work.
  • Exports a Shopify draft CSV and a cross-marketplace worksheet.

FULL GENERATED DEMO PACK

One verified record. Every field shown.

SKU NL-MUG-20-BLKGTIN 850041234567PRICE $29.00COST $10.50GROSS MARGIN 63.8%INVENTORY 48
SHOPIFYDraft import record
Title
Northline Insulated Stainless Steel Travel Mug 20 oz Matte Black
Description
Designed for commuters, drivers and travelers. Double-wall vacuum insulation, a leak-resistant twist lid and a cup-holder-friendly base.
Tags
travel mugs, stainless steel, matte black, insulated tumbler, commuter gift
SEO title
Insulated Stainless Steel Travel Mug | Northline
Status
Draft · unpublished · review required
AMAZONSearch and benefit pack
Title
Northline Insulated Stainless Steel Travel Mug - 20 oz Matte Black
Bullet 1
BUILT FOR DAILY USE — Double-wall vacuum insulation keeps drinks hot or cold.
Bullet 2
PRODUCT DETAIL — Leak-resistant twist lid with sliding sip opening.
Bullet 3
DESIGNED WITH PURPOSE — Slim base fits standard vehicle cup holders.
Search terms
travel mug insulated tumbler coffee cup commuter gift
ETSYDiscovery pack
Title
Insulated Travel Mug | Matte Black | 20 oz | Commuter Gift
13 tag opportunities
travel mug · insulated tumbler · coffee cup · commuter gift · matte black · reusable cup · 20 oz mug · driver gift · office coffee · steel tumbler · hot drink cup · cold drink cup · travel gift
Attributes
Travel Mugs · Matte Black · 20 oz · 18/8 stainless steel
Care
Hand wash recommended. Not microwave safe.
EBAYItem-specific pack
80-character title
Northline Insulated Travel Mug Matte Black 20 oz Stainless Steel
Brand
Northline
Type
Travel Mug
Color / Size
Matte Black · 20 oz
Material
18/8 stainless steel, BPA-free polypropylene lid
QUALITY GATEPre-publish validation
  • Required title, category, SKU, price and features present
  • GTIN, material, color, capacity and care notes present
  • Gross margin calculated from verified price and cost
  • Platform title limits checked
  • Human review still required before marketplace import

FROM $29 · HUMAN-REVIEWED · NO CALL

Send one rejected marketplace feed. Get back a corrected import pack.

Start with a free diagnostic, use the $9 automatic fix, or choose a $29 human rescue for an Amazon, Shopify or eBay feed error.

Submit a secure CSV Or test it yourself