(base code / forked from tim-bezhashvyly/magmi-grouped-price-plugin)

This plugin allows to import customer group prices. The column format for customer price groups is group_price:customer_group, where customer_group is your customer group name.

You should have a websites column with comma separated website codes (e.g. com,net) in your import file.

Use the same ordering in the group_price column (but with pipe (|) as separator: e.g. group_price_for_com_website|group_price_for_net_website.