Choose who updates whom between Nucleo and Shopify

Every Shopify flow now has a direction: Shopify updates Nucleo, Nucleo updates Shopify, both ways, or ignored. Products, collections, prices by market and stock offer all four; orders always come from Shopify, and both ways lets Nucleo send fulfillments, cancellations and refunds back. Catalog flows also choose how often they update: automatically, every night, or only when you ask.

The source of a flow controls it fully, deletions included, and switching a flow to write to Shopify asks for confirmation first. Products go to Shopify complete, with variants, options and photos, and only when they're published on the Shopify channel. A completed store stock count is always sent to Shopify.