{"ean":"9780470527580","condition":"NEW","listing_price":4550,"minimum_price":3990,"amount":9,"handling_time":1,"id_offer":"1234"}"HTTP\/2 400 \r\ndate: Sat, 05 Oct 2024 16:34:43 GMT\r\ncontent-type: application\/json; charset=utf-8\r\ncontent-length: 71\r\netag: W\/\"47-MvrNEhUyE8v6PglTjO5CCcJ7Qdw\"\r\nstrict-transport-security: max-age=31536000; includeSubDomains\r\nvia: 1.1 google\r\nalt-svc: h3=\":443\"; ma=2592000,h3-29=\":443\"; ma=2592000\r\n\r\n{\"message\":\"A unit with the id_offer 1234 already exists.\",\"errors\":[]}"HTTP/2 400 
date: Sat, 05 Oct 2024 16:34:43 GMT
content-type: application/json; charset=utf-8
content-length: 71
etag: W/"47-MvrNEhUyE8v6PglTjO5CCcJ7Qdw"
strict-transport-security: max-age=31536000; includeSubDomains
via: 1.1 google
alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

<br>HTTP Response Code: 400