Starting with POS UI extensions API version 2026-07, FixedAmount line item discounts passed to setLineItemDiscount and bulkSetLineItemDiscounts from the Cart API must represent a per-unit discount.
Summary extracted from the official source text. Verify details on the source page.
| Platform | Shopify |
|---|---|
| Effective date | No date published |
| Precision | n/a |
| Published | 2026-07-08 |
| Categories | Breaking / action required |
| Tags | 2026-07, API, Action Required, Breaking API Change, POS Extensions |
| Official source | Shopify developer changelog ↗ |
| Fetched | 2026-10-17T03:44:00+00:00 |
| First seen | 2026-10-17T01:05:46+00:00 |
| Status | Listed by the source |
| Stable ID | shopify-d185346d2c · JSON |