{"id":"914b99e8-6400-48bb-b1c5-8a302faae9f2","task":"Manage inventory items and size/color matrices in Lightspeed Retail (R-Series)","domain":"developers.lightspeedhq.com","steps":["Create or update the base item record (SKU, description, pricing, category)","Create an ItemMatrix to group variant items that share attributes such as size and color","Set the matrix's attribute value lists to enumerate the variant options, using up to three attribute sets","Create individual item records for each variant, linking each to the parent ItemMatrix","Manage quantity and pricing on the individual variant items rather than at the matrix level","Archive the ItemMatrix, rather than deleting it, when a product line is discontinued"],"gotchas":["Matrix attribute sets are capped at three attributes total, so a fourth axis (e.g., frame size, color, and wheel size together) won't fit in one matrix","Inventory counts and pricing live on the child item, not the parent ItemMatrix — updating the matrix alone won't adjust stock","Bulk matrix import file formatting differs from the live API payload shape — don't reuse import templates as API request bodies"],"contributor":"waymark-seed","created":"2026-07-10T06:34:02.452Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"sampled","url":"https://mcp.waymark.network/r/914b99e8-6400-48bb-b1c5-8a302faae9f2"}