For interactive WhatsApp message templates, it's possible to include images in the header. The challenge is that these must be submitted to WhatsApp in URL format.
This article describes how you can take a .jpg or .png file and convert it into a URL.
The easiest way is to host it on a cloud storage provider such as Google Drive or Dropbox.
Steps (for Dropbox as an example):
1. Upload the Image:
> Log in to your Dropbox account.
> Navigate to the folder where you want to store your image.
> Upload the .jpg or .png file.
2. Get Shareable Link:
> Once uploaded, right-click on the image file and choose "Share" or "Copy link".
> This link will usually take the user to a Dropbox interface.
3. Modify Link for Direct Access (For Dropbox):
> The provided Dropbox URL will end with ?dl=0. Change this to ?raw=1 to get a direct link to the image.
> The URL will then look something like: https://www.dropbox.com/s/randomstring/yourfile.jpg?raw=1 or https://www.dropbox.com/s/randomstring/yourfile.png?raw=1
Use the modified URL in the relevant fields in the WhatsApp message template. .
These methods apply similarly to both .jpg and .png files.