I have problem with product thumbnail. When imported csv file of products I forgotten to add thumbnail column. So because I imported several files of products, I exported all products in one file and in thumbnail column I just copy small_image column links to thumbnail column. But when I import this csv file thumbnail still not selected in products (I did reindex data). What I'm doing wrong?
Here are steps for importing products through csv
Step-1 place image in below folder [magento installation folder]/pub/media/import
Step-2 add image names in the csv file add names of each image of products in column base_image,small_image,thumbnail_image etc
Step-3 import csv backend
Step-4 add media path add path to "images file directory" (/pub/media/import)