ShipWave Channels

Listing validation by platform

Platform-specific listing requirements and how to pass validation.

Universal requirements

All marketplaces require:
  • SKU: A unique identifier for the product
  • Title: Product name (length limits vary)
  • Price: Must be greater than $0
  • Quantity: Must be 0 or greater
  • Images: At least one product image (strongly recommended)

Amazon requirements

  • Title: Maximum 200 characters
  • Description: Maximum 2000 characters
  • Bullet points: Maximum 5 bullets, 500 characters each
  • Images: Maximum 9 images
  • SKU: Maximum 40 characters
  • Brand: Required
  • GTIN: Required for most categories (UPC, EAN, ISBN)
  • Product type: Must match Amazon's product type taxonomy

Common Amazon errors:
  • "Brand is required" → Add brand to your Shopify product
  • "GTIN invalid" → Check the barcode format
  • "Title exceeds maximum length" → Shorten to under 200 characters

Walmart requirements

  • GTIN: Required for ALL products (no exceptions)
  • Brand: Required
  • Description: Required (cannot be empty)
  • Images: At least one image required
  • Category: Must be assigned to a Walmart category

Common Walmart errors:
  • "GTIN is required" → Add a valid UPC/EAN barcode
  • "Invalid GTIN format" → Ensure it's a valid 12 or 13-digit barcode
  • "Category required" → Set up category mapping for the product type

eBay requirements

  • Title: Maximum 80 characters
  • Description: Required
  • Category: Must be assigned to an eBay category
  • Item specifics: Some categories require specific attributes
  • Condition: Must be specified (New, Used, etc.)

Common eBay errors:
  • "Title exceeds 80 characters" → Shorten the title
  • "Missing required item specific" → Add the required attribute
  • "Invalid category" → Select a valid eBay category

Etsy requirements

  • Title: Clear, descriptive title
  • Description: Required
  • Who made it: Required (I did, a member of my shop, another company)
  • What is it: Required (finished product, supply, etc.)
  • When was it made: Required for handmade items
  • Tags: Up to 13 tags for search
  • Shipping profile: Required

Common Etsy errors:
  • "Missing required attribute" → Fill in who/what/when fields
  • "Shipping profile not found" → Set up shipping in Etsy first

TikTok Shop requirements

  • Images: High-quality, square format recommended
  • Category: Required
  • Description: Clear product description
  • Size chart: Required for apparel/footwear

Common TikTok errors:
  • "Category required" → Select a TikTok category
  • "Image quality insufficient" → Use higher resolution images
  • "Size chart required" → Add size information for apparel

Validation preview

Before pushing, ShipWave validates the listing and shows:
  • Errors (red): Must be fixed before pushing
  • Warnings (yellow): Recommended to fix, but push is allowed
Click on any validation message to see detailed guidance on how to fix it.

FAQs

Can I push a listing with warnings?
Yes. Warnings are recommendations, not requirements. However, fixing warnings often improves listing quality and visibility.
Why do requirements differ by platform?
Each marketplace has its own policies and catalog structure. ShipWave validates against each platform's specific requirements.
How do I add GTIN/UPC to my products?
In Shopify, edit the variant and add the barcode in the "Barcode (ISBN, UPC, GTIN, etc.)" field. This syncs to ShipWave automatically.
What if I don't have a GTIN?
For Amazon, some categories allow GTIN exemptions. For Walmart, GTIN is required without exception. You can purchase GTINs from GS1.

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