After an import or after editing massive data you should run this options in order to clean your DB.

• Make a complete DB backup before to run this option *

This option creates a Sample CSV file that you can use to import your products meta data using the Woocommerce importer. How to import data:

• Select Sample CSV from the plugin admin menu
• Click Download CSV sample
• Export your data to CSV file based on the sample created. The format of the file is based on the custom fields you have create thru the plugin. Every custom field column head will have the following name Meta: mg_cf_[custom_field_slug]. For example if you have a custom field named User Manual you will have the column named Meta: mg_cf_usermanual
• Import your data thru Woocomerce importer checking the advanced option Update data is SKU present. This option updates only data for existing products (* Make a complete DB backup before to import data option *).