It sounds like there might be an issue with how the import file is set up. To add products to an existing collection without creating new collections for each product, make sure your import file is structured correctly. Here's what you should do:
1. Ensure Correct Column Usage:
-
Use the Custom Collections column to specify the collection name, which in your case is "Affiliate Program: Bags Only".
-
Make sure that each product you want to add to this collection has the same collection name in the Custom Collections column.
2. Avoid Creating New Collections:
- Ensure that the Title and Handle columns for the collection are consistent across all rows for the products you want to add. This tells DataEase that these products belong to the same collection.
3. Check for Duplicates:
- If you have multiple rows for the same product, ensure that the Handle for the product is the same in each row to avoid creating duplicate collections.
If you continue to experience issues, please double-check your import file for any discrepancies. If the problem persists, it might be helpful to provide a screenshot or more details about your import file setup.