Editing contents of meta data for a big product base, can be very time consuming. But You can always use SQL…
Get `atributte_id` for meta data: SELECT attribute_id,attribute_code FROM `eav_attribute` WHERE `attribute_code` LIKE '%meta%' The result should be similiar to:
+--------------+------------------+--------------+| attribute_id | attribute_code | backend_type |+--------------+------------------+--------------+| 40 | meta_title | varchar || 41 | meta_keywords | text || 42 | meta_description | text || 76 | meta_title | varchar || 77 | meta_keyword | text || 78 | meta_description | varchar |+--------------+------------------+--------------+ We’ll use the attribute_id in the next query. ...