After enabling Product variation plugin, you have to manage settings in nopCommerce admin.
(path: Admin/ProductVariation/Configure).
Plugin enables multi-store configuration - you can configure different settings for different stores, if needed.
Cache Duration - cache duration in minutes.
Show product Variations Widget - In case chosen then widget zone that is chosen for showing product variations (widget zone is defined under setting "Product Variations Widget zone)".
Product Variations Widget zone - defines the widget zone where variation pictures will be shown on product card (in both cases, on main product's product card and on variations product card.
NB! Widget zone must be always chosen.
Show Product Variations Pictures - if checked then pictures from product variations will be displayed on product's details page.
Redirect To Product Variation if Singe - in case checked then auto redirect will be executed if the main product has only one variation.
Update Main Products Prices - in case checked then main product's price and old price will be updated by lowest prices taken from variations.
Sort Variations Values Alphabetically - check if you want product variations values be sorted alphabetically in drop-down list.
Hide Product Variations From Category View - check if you want to hide product variations in category view and show to customer in category view only main products.
Hide Product Variations From Search Results - check if you want to hide product variations in search results and show to customer in search results only main products.
Find Main Products By Product Variations For Category View - check if you want to enable to filter in category view main products based on variations attributes (variation products are not displayed individually).
Find Main Products By Product Variations For Search Results - check if you want to enable to search main products by variations attributes (variation products are not displayed individually).