More Users permissions requested

[featurespoon]

One of our users who has limited permissions, is using the Control Panel to import a file of product data, but is being stopped with the message "error_permission".  I have set up read/write permission to all the modes I can think might apply, such as tool/import_upload, tool/import_process, listing_grid/file_uploads, catalog/product*, but it makes no difference. I can see nothing in the manuals that can help.  Can you tell me what I'm missing?
Thanks.

[llegrand]

products have a lot of different tables

Go to admin panel -  select  System > Data > Import/Export

Use the Export tab
on Products  click on the expansion double arrows to see all of the tables

this should help you sort it out.