I am trying to use the Create Unassociated Attachment endpoint to upload attachments to my Help Center. This works through Postman if I use the file property and link to a file on my local computer.
The issue is I am trying to do this with files from the web. When I set that same file property to be the publicly-accessible URL of an image, I get the following error. This is the entire response in Postman:
"cannot be blank"
"A file must be provided"
I'm sure the issue is syntax-related, but I'm having trouble finding documentation with correct examples. The example in the developer documentation doesn't seem to reference a file from a URL.
The only other community post I've found on the topic is from 2015, and it doesn't seem like the issue was resolved there.
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