Getting 422 error from /cart/add.js even though product is in stock

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Intermittent 422 error when adding newly created variant to cart via /cart/add.js

Hi everyone, I’m facing an intermittent issue when creating a product variant dynamically via the Admin API and immediately adding it to the cart using /cart/add.js. What I’m doing Backend creates a new product + variant (used for add-ons / custom products). Backend sends the newly created variant_id to the frontend. Frontend calls: POST /cart/add.js Sometimes it works, but very often it fails with 422 Unprocessable Entity. Important observations GET /variants/{variant_id}.j…