Example ref
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Add creative under campaign and select the size e.g 970x250
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Creative type custom
-
Code type = standard
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Upload image
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Insert the following code into ‘standard’ field
<!DOCTYPE html>
<html>
<head>
</head>
<body>
<img src = "%%FILE:GIF1%%" width="100%" height="100%">
</body>
</html>
6. Change the FILE:GIF1 above to whatever name appear on ‘upload files (optional) as per ref image above.