curl "..." ^       \\ API URL
  -H "authority: ..." ^      \\ Direct website URL
  -H "accept: */*" ^
  -H "x-requested-with: XMLHttpRequest" ^
  -H "user-agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36" ^
  -H "content-type: application/x-www-form-urlencoded; charset=UTF-8" ^
  -H "sec-gpc: 1" ^
  -H "origin: ..." ^    \\ another direct website link
  -H "sec-fetch-site: same-origin" ^
  -H "sec-fetch-mode: cors" ^
  -H "sec-fetch-dest: empty" ^
  -H "referer: ..." ^   \\ this is the page with the API, not the direct API link, but the referer
  -H "accept-language: en-US,en;q=0.9" ^
  -H "cookie: PHPSESSID=8277c94e55544809bd2d5bcc8682ee6e; form_key=tt5WbYDNzw4bLjMk; _fbp=fb.1.1628333353733.716477871; __zlcmid=15SkElsHdjsnob4; mage-cache-storage=^%^7B^%^7D; mage-cache-storage-section-invalidation=^%^7B^%^7D; mage-cache-sessid=true; mage-messages=; recently_viewed_product=^%^7B^%^7D; recently_viewed_product_previous=^%^7B^%^7D; recently_compared_product=^%^7B^%^7D; recently_compared_product_previous=^%^7B^%^7D; product_data_storage=^%^7B^%^7D; private_content_version=4d4c8b3f9dcb4cf045c280d747124a0a; section_data_ids=^%^7B^%^22customer^%^22^%^3A1629116792^%^2C^%^22compare-products^%^22^%^3A1629116792^%^2C^%^22last-ordered-items^%^22^%^3A1629116792^%^2C^%^22cart^%^22^%^3A1629123246^%^2C^%^22directory-data^%^22^%^3A1629116792^%^2C^%^22captcha^%^22^%^3A1629116792^%^2C^%^22instant-purchase^%^22^%^3A1629116792^%^2C^%^22persistent^%^22^%^3A1629123246^%^2C^%^22review^%^22^%^3A1629116792^%^2C^%^22wishlist^%^22^%^3A1629116792^%^2C^%^22tealium-tags-add-to-cart^%^22^%^3A1629116792^%^2C^%^22tealium-tags-remove-from-cart^%^22^%^3A1629116792^%^2C^%^22tealium-tags-add-to-compare^%^22^%^3A1629116792^%^2C^%^22tealium-tags-customer-account-create^%^22^%^3A1629116792^%^2C^%^22tealium-tags-customer-logout^%^22^%^3A1629116792^%^2C^%^22tealium-tags-customer-login^%^22^%^3A1629116792^%^2C^%^22tealium-tags-add-to-wish^%^22^%^3A1629116792^%^2C^%^22tealium-tags-sendfriend^%^22^%^3A1629116792^%^2C^%^22tealium-tags-coupons^%^22^%^3A1629116792^%^2C^%^22tealium-tags-save-order^%^22^%^3A1629116792^%^2C^%^22tealium-tags-update-qty^%^22^%^3A1629116792^%^2C^%^22tealium-tags-checkout^%^22^%^3A1629116792^%^2C^%^22recently_viewed_product^%^22^%^3A1629116792^%^2C^%^22recently_compared_product^%^22^%^3A1629116792^%^2C^%^22product_data_storage^%^22^%^3A1629116792^%^2C^%^22paypal-billing-agreement^%^22^%^3A1629116792^%^2C^%^22checkout-fields^%^22^%^3A1629116792^%^2C^%^22collection-point-result^%^22^%^3A1629116792^%^2C^%^22pickup-location-result^%^22^%^3A1629116792^%^2C^%^22messages^%^22^%^3A1629116792^%^7D" ^
  --data-raw "serial_number=mn2m-pea201228-000506" ^
  --compressed



response once sent

{"status":"success","serial_number":"mn2m-pea201228-000506","sales_channel":null,"gift_order":true}