What does Save on a variant's page save?

It saves everything you changed on the variant, in one click. As soon as you change a field, a small black pill appears at the top. It reads 1 unsaved change, or 3 unsaved changes, with Discard and Save, and a line under it says what the cost will do, like New cost from 1 Nov 2026. Save writes the cost, the weight, the packaging size and the lead time you changed, and nothing else. Ctrl and S does the same, or Cmd and S on a Mac. Discard puts back what was saved.

While something is unsaved, every way out is held: the back arrow, the arrows to the previous and next variant, the sidebar and a reload. The pill shakes until you save or discard. After a save, the page goes back to the list, the row flashes once, and a message names the variant and says what changed.

A cost counts from the day you choose under From when this cost counts, and every day before keeps its old cost. A variant's first cost counts from your first order day. A new cost starts today, or on the day you pick under New cost from, and a day in the past prices the orders from that day again. Correct the cost since fixes a typo and re-prices every order since that cost began. Where the price goes shows at once what a new cost does to your margin.

A cost you planned for a later day stays, and the page says so: Your cost from 1 Dec 2026 stays. A cost that came from Shopify's sync is different. The cost you save takes over every Shopify cost that starts after its day. Those go, and yours runs until your own next cost, or without an end. The page names them before you save, and the message after the save says so too.

A weight or packaging size you save is yours from then on, and a sync never changes it. Saving one works the past days out again, so past parcels get the right price. Emptying the weight field does not delete the saved weight.

A reorder lead time is a setting for the whole product, so it changes no number on your P&L. Only the reorder dates on Insights move. In the summary, Sold, last 30 days says before this change while you change a cost, because the new product costs come a few seconds after the save.

The Cost history at the bottom of the page lists every cost the variant had. Open an older one to see or correct it: a note says which cost you are looking at, and Back to today's cost returns. Each cost has a three-dot menu with Delete this cost, and a dialog says first what then counts for those orders.