Attachment is not getting added in the request

Attachment is not getting added in the request

I am using API to add attachments to the request. I am getting a successful response, but the attachment is not added to the request. 

I tried using both, the API tool from ServiceDesk and Python Script. But, getting the same response using both ways. 

I have raised a request with support. But after following up for the last 2 days, haven't got any reply. 

So, I am posting this here to get any suggestions on how to fix this issue.


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