Mapping Reviews
Review and confirm how columns from your uploaded files map to product fields in MerchantOps.
Understanding and configuring column mappings for accurate data extraction.
What is Column Mapping?
When you upload a document, MerchantOps needs to understand which columns in your file correspond to which product fields. Column mapping is the process of associating source columns (like "Item Name" or "MSRP") with target fields (like "Product Name" or "Price").
Our AI automatically detects likely mappings, but you can:
- Review and confirm auto-detected mappings
- Manually adjust incorrect mappings
- Skip columns you don't need
- Save mappings for reuse with similar files
When is Mapping Review Needed?
Not all uploads require manual mapping review. The system may request review when:
- It's the first time processing files from this source
- Column names don't match known patterns
- Multiple columns could map to the same field
- Critical fields (like product name) couldn't be auto-detected
Documents with status mapping_required need your review before processing can continue.
The Mapping Review Interface
When a document requires mapping review:
- Navigate to the document in Lakehouse → Documents
- Click the "Review Mappings" button
- The mapping interface shows all detected columns

Interface Elements
| Element | Description |
|---|---|
| Source Column | The column name from your uploaded file |
| Sample Values | Example data from the first few rows |
| Target Field | The MerchantOps product field to map to |
| Confidence | AI confidence level in the suggested mapping |
| Status | Confirmed, pending review, or skipped |
Available Target Fields
Source columns can be mapped to these product fields:
Core Fields
| Field | Description | Required |
|---|---|---|
vendor_id | Vendor Style Id | Yes |
name | Product name/title | Yes |
brand | Brand or manufacturer name | No |
description | Product description text | No |
features | Features of a product (bulleted list) | No |
price | Product price | No |
tagline | Short Description of the product | No |
image_url | Main product image URL | No |
Custom Attributes
In addition to core fields, you can map columns to any attribute defined in your Attribute Dictionary. This allows you to import attribute values directly from your source files.
Reviewing Mappings
For each column, you can:
Confirm a Mapping
If the auto-detected mapping is correct, click the checkmark to confirm it. Confirmed mappings show a green indicator.
Change a Mapping
- Click on the target field dropdown
- Select the correct field from the list
- The mapping updates immediately
Confirm All
Click "Confirm Mappings" to accept the current configuration. This triggers the document to continue processing with your approved mappings.
Reject/Confirm
If the auto-detection is significantly wrong, click "Reject Mappings" to clear all suggestions and start fresh with manual mapping.

Reprocessing After Changes
If you change mappings after a document has been processed:
- Save your updated mappings
- Click "Reprocess Document"
- The system re-extracts products using the new mapping
Note:Reprocessing creates new lakehouse products. If you've already promoted products to the Catalog, those remain unchanged.
Saving Mapping Templates
For recurring file formats (like monthly vendor exports), you can save mapping configurations as templates:
- Configure the mapping for your first file
- Click "Save as Template"
- Name your template (e.g., "Acme Vendor Export")
- Future uploads can use this template automatically
To apply a saved template:
- Open the mapping review for a new document
- Click "Load Template"
- Select the appropriate template
- Review and confirm the applied mappings
Best Practices
Column Naming
- Use clear names:Columns like "Product Name" map better than "Col_A"
- Be consistent: Use the same column names across files from the same source
- Include units:"Weight (oz)" is clearer than just "Weight"
Review Strategy
- Check sample values: Verify the data matches the expected field type
- Review low-confidence mappings: Pay extra attention to mappings with low AI confidence
- Map attributes early: Configure attribute mappings in the first file to set the pattern
Next Steps
After confirming your mappings:
- Review extracted products for accuracy
- Upload more documents using saved templates
- Set up attributes if you need more fields to map to