I am trying to import products through system->import/export option. I have created a custom attributes also.

While creating the csv file some attributes are having underscore prefix. For example type is as _type, _product_websites etc. Some of them are not having the prefix.

If I change _type as type it is not working.

How can I decide the attribute should have underscore prefix or not?

1 Answer 1


If you first run an export, you can use the exported sheet as reference.

Simply modify the exported sheet, add new lines if needed, and re-import it.

Hope this helps!

  • thanks, for a category section a product belongs to primarycategory/secondarycategory . I created an csv category as primarycategory/secondarycategory . but onle secondarycategory is selected in the categories tab.
    – Anto S
    May 10, 2015 at 13:04
  • @milan , what is the purpose of _ prefix, and how to remove Mar 6, 2018 at 7:28

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