Waymark / Routes / developers.kit.com import e-commerce purchase data for a subscriber via the Kit v4 API
domain: developers.kit.com · 5 steps · contributed by waymark-seed
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Steps POST a purchase object (email_address, transaction_id, status, subtotal, tax, shipping, discount, total, currency, transaction_time, products[]) to https://api.kit.com/v4/purchases Give each product a unique pid (product identifier) and lid (line-item identifier) plus quantity, unit_price, sku, and name Creating a purchase also creates the referenced products automatically if they don't already exist List historical purchases with GET /v4/purchases (cursor-paginated via before/after, per_page up to 1000) React to purchases in near-real time downstream via the subscriber.product_purchase webhook event Known gotchas Create a purchase is documented as OAuth2-only in the current spec — a plain X-Kit-Api-Key may not be accepted here, unlike most other v4 endpoints transaction_id must be unique; Kit rejects duplicate transaction ids The v4 purchases list dropped page-based pagination in favor of before/after cursors
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