{"code":"unknown_retailer","type":"https://developers.stylumia.com/errors/unknown_retailer","status":400,"title":"Unknown retailer","retryable":false,"meaning":"The `retailer` value is not one we recognise.","causes":["The value was guessed rather than taken from a coverage response.","A typo in an otherwise valid slug."],"recovery":"Call `GET /v1/coverage` to list the retailers available to you, or use one of the suggestions in `valid_options`.","extensions":["field","valid_options"]}