đź§© What Are Customizations?
The Customizations feature lets you upload a spreadsheet to apply updates across large groups of products or listings at once.
This is the fastest way to:
- Modify product or listing data in bulk
- Improve or enhance supplier feed data
- Apply channel-specific changes
- Lock or override pricing and quantity fields
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Customizing Products vs. Listings
Use the table below to quickly determine which type of customization is the best fit for your use case.
Why Use Customizations?
Customizations let you:
- Improve supplier product data or fill missing item fields
- Add MAP price when it’s not available in a supplier feed
- Enrich product metadata (titles, descriptions, brand, materials, etc.)
- Tailor listing data for specific channels without affecting all listings
- Lock pricing or quantity fields to prevent them from updating from feed imports
- Update SKUs for existing products or listings
- Apply bulk updates after data QA and catalog cleanup initiatives
- Implement flash sales or promo pricing
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Standardize and apply your business's product data rules across supplier feeds
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🛠️ How-to Guides
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How to Create a Customization
The steps below apply to both Product and Listing Customizations. If you're customizing Listings: You must also select the channel the customization applies to. See our comparison table above for help choosing between Product vs. Listing Customizations.
Tips
🔍 Not Seeing Your Changes?
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Customizations, never update Source Inventory.
The Source Inventory always displays original supplier data. -
Product Customizations update the Product Catalog only.
To push the updated values to your listings, you may need to Rebuild Listings. -
Channel Listing Customizations update Channel Listings only and do not affect Products or Source Inventory.
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🛠️ Ensure Updates Apply Downstream
Depending on your catalog workflow, you may need to perform a:
- Rebuild — Reprocesses listing data using the updated Product values
- Overwrite — Forces the updated values onto the connected channel
This ensures that the changes flow correctly to downstream systems.
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Locking/Unlocking Pricing and Quantity Fields
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Customizations can be used to lock certain dynamic fields so they do not update when source feed data changes. Only Pricing and Quantity fields can be locked:
- List Price
- Estimated Cost
- Quantity
- Shipping Cost
When a dynamic field is locked via Customization, future feed updates will not update that specific field until you explicitly change or unlock it (via another customization or manual edit).
Example Use Cases
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Flash sale on a subset of SKUs
Lock the list price at a promotional value for specific SKUs while supplier costs continue to update in the background.
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Protecting MAP pricing
If MAP isn’t reliably provided by the supplier, set and lock MAP values so they stay compliant.
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Holding fixed inventory for a sale or bundle
Lock quantity for certain SKUs so automatic feed changes don’t disrupt specific marketing campaigns.
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How to Unlock Quantity Using a Customization
If a listing or product has become locked due to a previous customization (for example, a quantity override), you can unlock it using a simple Customization update.
There are two ways to unlock the quantity, and the easiest is to run a new Customization using only the SKU field.
Unlock Quantity in Bulk Using a Customization (Recommended)
Use this option when you want to unlock quantity for many SKUs at once.
Steps:
- Go to Products → Channel Listings.
- Open Actions → Customizations.
- Select your Channel (if customizing listings).
- Choose your existing Mapping Template, OR create a new one for unlocking.
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In the Mapping Template:
- Include only the Master SKU Variant SKU field as the identifier
- Set the Quantity field to Set to Empty.
- Leave all other fields set to Don't Map
- Save the template.
- Upload a file that contains only the SKUs you want to unlock (no quantity values).
- Ensure the file format matches your upload (.csv, .xlsx, or .tsv).
- Click Run Listing Customization (or Product Customization).
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Wait for the success notification in the top-right bell icon (🔔).
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When the customization completes, the system removes the quantity lock and shows the quantity derived for linked source inventory.
Unlock Quantity with a Manual Edit (Single SKU Only)
Use this option when you only need to unlock one product/listing.
Steps:
- Go to Channel Listings.
- Search for the SKU.
- Click into the listing.
- Locate the Quantity field.
- Remove or reset the overridden quantity.
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Save the listing.
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Manual edits are useful for one-off changes, but bulk unlocking should be done through a Customization file.
⚠️ Important: Only Pricing and Quantity) can be locked using Customizations.
Non-PQS fields (e.g., titles, descriptions, attributes)Â cannot be locked in this way.
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Customizations for Large Catalogs
For very large catalogs, Customizations are powerful but should be used thoughtfully.
Recommended approach:
- Break large customization projects into batches of 100,000 SKUs or fewer.
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Start with a small test set to validate your:
- Template mappings
- File format
- Logs and results
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Additional tips:
- Use meaningful file names that describe the purpose and date (e.g., 2025-12-09_map-update-usa-channel.csv).
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Keep a record of:
- Which templates were used
- What fields were updated
- Which SKUs were included
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Best Practices & Final Tips
- Decide first: Product vs Listing level based on the table above.
- Standardize your templates: Reuse consistent templates for recurring operational tasks.
- Log everything: Keep a documented history of major Customizations for audit and rollback planning.
- Test before scaling: Always test with a small subset before running changes on your full catalog.
Review logs after every run: Confirm success and handle errors early, rather than discovering issues days later.
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🔍 Troubleshooting & Common Errors
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