I am integrating the WhatsApp Business API into my website, and everything works fine during the creation of a template. However, I am encountering an issue when updating a carousel template that contains media (image) in the header.

**Here’s the data I provide during template creation, and it works perfectly: **

{     "category": "MARKETING",     "components": [         {             "type": "BODY",             "text": "Enter the text for your message in the language that you've selected."         },         {             "type": "HEADER",             "format": "IMAGE",             "example": {                 "header_handle": [                     "https://scontent.whatsapp.net/v/t61.29466-34/455307745_840177258275973_4917068164528515056_n.jpg?ccb=1-7&_nc_sid=8b1bef&_nc_ohc=JhgXpTB6hb8Q7kNvgGo4C8z&_nc_ht=scontent.whatsapp.net&edm=AH51TzQEAAAA&_nc_gid=AYrC8T5SS1pa7iuvimhJfWi&oh=01_Q5AaIDQYeMKQIW57cK89ejtgUrwADCGDyq30TZQusIPOCDmo&oe=672C6BF5"                 ]             }         }     ] } 

However, when I try to update a carousel template with similar image data, I receive the following error:

This carousel template contains a card (index=0) with an invalid media sample.

Here’s the data I send during the update, which throws the error:

{     "category": "MARKETING",     "components": [         {             "type": "BODY",             "text": "12324"         },         {             "type": "CAROUSEL",             "cards": [                 {                     "components": [                         {                             "type": "HEADER",                             "format": "IMAGE",                             "example": {                                 "header_handle": [                                     "https://scontent.whatsapp.net/v/t61.29466-34/421261359_838328285127784_2325180770850864310_n.jpg?ccb=1-7&_nc_sid=a80384&_nc_ohc=CvDs5MWLqggQ7kNvgEuowZS&_nc_ht=scontent.whatsapp.net&edm=AH51TzQEAAAA&_nc_gid=AThnla93YjSTDzg4e3-2eDa&oh=01_Q5AaID-Ozb7JEZ-dNOAYQlxmks79b0nfTElne8ZqRD14ZtFV&oe=672C57BB"                                 ]                             }                         },                         {                             "type": "BODY",                             "text": "234525"                         },                         {                             "type": "BUTTONS",                             "buttons": [                                 {                                     "type": "QUICK_REPLY",                                     "text": "2452"                                 }                             ]                         }                     ]                 }             ]         }     ] } 

What I've Tried:

• The image URL is valid and works fine for non-carousel templates.
• The URL is provided by Meta after uploading the media.
• I suspect the issue might be related to how the API validates media for carousel components.

Question:

Why does the same image URL work for a regular template but result in an "invalid media sample" error for a carousel template? Does the WhatsApp API require a media ID for carousel updates, even if the URL is valid? How should I handle image media in carousel templates to avoid this error?

Any insights or suggestions are appreciated. Thanks in advance!