Automation to Slack with Photos

Hello, I’m trying to find the best way to have reports with attachments (photos) automatically post to our team Slack channel upon submission. Basically, I have set up a form that my team can complete that allows for an attachment (photo) upload. After submission I have the automations set up to post to Slack. Everything works except the image will normally have “file not found.” I have the URL set to forward to Slack.

Any ideas?

Thanks in advance!


I would like to know how to implement this functionality as well.