Walmart Listing Errors: Deep Matching Mismatch Detected

Error Description

The "DEEP_MATCHING_MISMATCH_DETECTED" error on Walmart Marketplace indicates that there are critical mismatches between the product information you provided and the data Walmart has on file for similar or identical products. This error is triggered by Walmart's deep matching algorithms, which compare product attributes such as title, description, images, and specifications against their existing catalog. Mismatches can arise from differences in key attributes, leading to confusion or misrepresentation of the product.

Common Causes:

Inconsistent Product Data: Variations in product titles, descriptions, or specifications that do not align with Walmart’s existing data.
Incorrect Attributes: Providing incorrect or misleading product attributes that differ significantly from known data.
Image Discrepancies: Differences in primary images or additional images that do not match Walmart’s existing records.
Duplicate Listings: Attempting to list a product that Walmart believes is already listed, but with different details.
Data Entry Errors: Manual entry errors that result in discrepancies between your product data and Walmart’s records.

Error Solution

To resolve the "DEEP_MATCHING_MISMATCH_DETECTED" error on Walmart Marketplace, follow these steps:

Review Walmart’s Product Data:
- Review Walmart’s guidelines and existing product listings to understand the expected format and details for similar products.
- Compare your product data with Walmart’s existing listings to identify discrepancies.
Identify and Correct Mismatches:
- Check your product titles, descriptions, specifications, and images for consistency with Walmart’s existing data.
- Ensure that all provided attributes match the standard format and values used by Walmart.
Ensure Accurate Product Data:
- Provide clear and accurate product information that aligns with Walmart’s records. This includes using correct titles, detailed descriptions, and accurate specifications.
- Use high-quality images that match the product and are consistent with those in Walmart’s catalog.
Update Bulk Upload Files:
- If using bulk upload tools, review your CSV or Excel files to ensure all product data is correctly formatted and matches Walmart’s standards.
- Use Walmart’s bulk upload templates and validation tools to check for errors before submission.
Manual Entry Checks:
- For individual product listings, manually enter the product data accurately. Ensure that the information provided is consistent with Walmart’s existing records.
- Double-check for any typographical errors or incorrect entries.
Contact Walmart Support:
- If you are unable to identify the mismatches or need further assistance, contact Walmart Marketplace support. Provide detailed information about the error and the steps you’ve taken to resolve it.
- Engage with Walmart seller forums and communities to seek advice from other sellers who might have faced similar issues.
Resubmit and Verify:
- After making the necessary corrections, refresh the product listing page and attempt to save or resubmit the listing.
- Verify that the error has been resolved and that the listing is successfully updated.
Clear Browser Cache and Cookies:
- Clear your browser’s cache and cookies to ensure you are viewing the most recent version of your listing.
- Try using an incognito or private browsing mode to rule out browser-specific problems.

Pro Tip

Advanced Strategies for Ensuring Data Consistency:

Implement Data Validation Tools:
- Use data validation tools to automate the process of checking product data for accuracy and consistency before submission. These tools can help identify errors and prevent mismatches.
- Integrate these tools with your inventory management system to ensure ongoing validation and compliance.
Standardize Data Entry Procedures:
- Develop standardized procedures for entering and verifying product data to ensure consistency across all listings. Use predefined templates and workflows for data management.
- Regularly update these procedures to reflect any changes in Walmart’s requirements or your own data management practices.
Use Product Information Management (PIM) Systems:
- Implement a PIM system to centralize and manage all product data. PIM systems help ensure that data is accurate, complete, and consistently formatted across all platforms.
- Integrate your PIM system with Walmart Marketplace to synchronize data automatically and prevent errors.
Conduct Regular Data Audits:
- Perform regular audits of your product data to ensure it is accurate, up-to-date, and compliant with Walmart’s guidelines. Use audit reports to track compliance and address any recurring issues.
- Schedule periodic audits to identify and correct any issues with product data.
Educate Your Team:
- Train your team on best practices for managing product data and ensuring compliance with Walmart’s guidelines. Ensure they understand the importance of accurate data entry and following listing procedures.
- Provide guidelines and checklists to help your team review and update product data effectively.
Monitor Competitor Listings:
- Analyze competitor listings to understand how they manage product data within the platform’s limits. Use this insight to refine your own strategy and ensure compliance.
- Identify successful patterns and adapt them to your products.
Optimize Bulk Editing Tools:
- Use Walmart’s bulk editing tools to update product data for multiple listings simultaneously. Ensure that bulk updates are accurately configured and comply with platform guidelines.
- Validate bulk editing files before uploading to minimize the risk of errors.
Stay Updated with Platform Changes:
- Regularly review Walmart’s guidelines and updates regarding product data management. Stay informed about any changes that might affect your listings.
- Participate in Walmart seller forums and communities to learn from other sellers and share best practices.
Use Automation for Data Entry:
- Implement automation tools to manage data entry processes related to product data. Automation reduces the risk of manual errors and ensures that data is consistently accurate.
- Tools like Zapier or Integromat can integrate with your e-commerce systems to automate data management tasks.
Utilize Competitor Analysis:
- Analyze competitor listings to understand how they manage product data within the platform’s limits. Use this insight to refine your own strategy.
- Identify successful patterns and adapt them to your products.

By following these strategies and maintaining a proactive approach to managing product data, sellers can minimize the risk of "DEEP_MATCHING_MISMATCH_DETECTED" errors on Walmart Marketplace, ensuring accurate and compliant product listings. Proper data management not only helps in preventing errors but also enhances overall visibility, searchability, and sales performance on the platform.

View error on Walmart

Walmart Error: Deep Matching Mismatch Detected

Error Description

Error Solution

Pro Tip

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