This is the correct method for copy code authentication type template message sending request { "messaging_product": "whatsapp", "to": "+917492956188", "type": "template", "template": { "name": "signup_login_otp", "language": { "code": "en_GB" }, "components": [ { type: 'body', parameters: [ { type: 'text', text: "1234" } ] }, { type: 'button', sub_type: 'url', index: 0, parameters: [ { type: 'text', text: "1234" } ] } ] } }