How each promotion type works on Shopify, what it actually costs your margin, and how to set it up — including the native route where one exists. We build an offers app, so we have a stake in this; every guide below states what Shopify can do on its own before it mentions what we add.
Free gifts, thresholds and shopper-chosen gifts.
Buy one get one and every Buy X Get Y variant.
Spend ladders, quantity breaks and loyalty tiers.
Companion products, extras and options.
Stacking rules and margin control.
Category basics and vendor comparisons.
