Why is my product not listing to a sales channel?
If a SKU is failing to list on a channel like Walmart, Amazon, or others, one of the most common causes is missing or invalid required attributes. Each channel requires specific product data fields before it will accept a listing. When these fields are blank or contain invalid values, you'll see errors in Zentail such as:
[ERROR] product_data— a required attribute is missing or has no valid value[ERROR] label_image— a required image field is missing a value[ERROR] pricing— the SKU and Product ID combination couldn't be matched, often because item setup isn't complete[ERROR] inventory— inventory can't sync because the item setup on the channel's side is incomplete
These errors often appear together. The good news is they can all be resolved by filling in the missing data directly on the product in Zentail.
Common required attributes that cause listing failures
Depending on your product's category and the channel you're listing to, different attributes may be required. Some of the most frequently missing ones include:
Label Image — Required for many categories, especially in Health & Beauty on Walmart. You must provide at least one valid label image URL.
Category-Specific Product Type — Many channels require a valid value from a predefined list (e.g., a specific "type" field for your product category).
Ingredients Statement — Required for consumable or personal care products.
Key Features / Bullet Points — Required for most categories across major channels.
Manufacturer / Brand — Must be filled in and match what the channel has on record.
Shipping Weight / Package Weight — Missing weights can cause channels to reject item setup.
Unit Count / netContent — This is a required field on Amazon and Walmart for most products.
How to fix missing attribute errors
Step 1: Open the product in Zentail
Navigate to the SKU that has the error in your Zentail catalog and open the product detail page.
Step 2: Click the wrench icon next to the error
Click Errors in the product's sidebar to see its errors for each channel. Then click the wrench icon next to the error you want to fix. It opens the product's catalog edit page, scrolled to the attributes that error names. Values you enter there go to every channel. To send a different value to just one channel, see Listing Attributes and Overrides.
Step 3: Use Listing Prep to find valid attribute values
For category-specific fields, channels often only accept values from a predefined list. Use Listing Prep in Zentail to look up the valid values for your product's category before entering them.
Important: if you can't find the attribute you're looking for, select All. Some attributes are only required depending on other data you send, so Only Required doesn't show them.
Step 4: Update and Push to the channel
Once you've filled in the required fields, save your changes and re-attempt the listing. The errors should clear once the channel receives the complete product data.
Note: Zentail resends the product automatically after you save. Update & Push is just the fastest way to check one product.
Why am I also seeing pricing and inventory errors?
Pricing and inventory sync errors are often downstream of product data errors. Channels won't sync price or inventory for an item that hasn't been fully set up yet. Fix the product_data errors first — once the item is live on the channel, pricing and inventory errors typically resolve on their own.
If they persist after the item is set up, check that your pricing rules and inventory are configured correctly in Zentail for that channel.
Still seeing errors after making changes?
If you've filled in all the required fields but errors persist:
Double-check that all attribute values are from the channel's approved list — use Listing Prep to verify
Make sure any image URLs are publicly accessible
Check for duplicate UPCs or EANs across multiple SKUs in your catalog — each barcode should only be used by one SKU
Reach out to Zentail support and share the full error text — this helps pinpoint the exact field causing the issue